PIP Mandatory Reconsideeration

Hi I'm new here and would like some advice please?
I have been awarded an enhanced rate for Mobility and Standard for Daily Living.
completed the CRMR1 form, at the same time asked for a copy of the HP Health Assessment Report, which initially didn't arrive. I sent the form CRMR1 back to DWP to avoid missing the cut off date. I received a copy of the Health Report this Saturday.
On my Health Assessment I scored zero points for Reading, Engaging with Others, Communicating Verbally, Eating and Drinking, and Making Budgeting decisions, for Managing Treatments I scored 1 point. I initially applied for PIP because I have spinal problems osteoarthritis in all joints, and I am waiting for both knees to be replaced and a spinal operation.
I have mentioned in most of the descriptors that I have brain fog and forget what I am doing
due to pain and the medication I take, my medical assessment was also taped.
One of the common side effects of taking my pain kellers is confusion, unable to think clearly and muddled thoughts?
I was not applying for PIP due to a mental health issue, I mentioned at assessment and on application form that I take testosterone (womans dose) for cognitive function as part of my HRT.
The reason why I scored zero was because I had not listed any ‘Mental Health’ issues or prescribed anxiety specific medications.
My partner reminded me that I was prescribed an antidepressant last year, which I had forgotten about (need prompting to take medication).
This morning I called DWP to find out how to add additional information to my MR?
The woman I spoke to was so rude asking me what additional information did I have, she informed me the reason why I scored zero was because I did not list the fact that I had a mental condition, I told her I didn’t, I had brain fog which is not a mental health issue but it can be a symptom of a mental health condition.
But also I had been prescribed antidepressants which I had forgotten about, she then said so you do have mental issues then? I told her that she was not a doctor. My antidepressants were prescribed for pain mainly and depression if required, but I did not use them on the majority of days? And I forgot I had been prescribed them that's why I needed prompting to take my medication.
She said she didn't understand why I didn't know if I had a mental condition or not, I told her I didn’t ? She then started asking me loads of questions. I told her I wasn't going to do a telephone interview, I would send a letter, and I wanted an extension for my MR, which she gave me ?
I will send DWP a copy of my antidepressant prescription but I have no idea what to write. I feel overwhelmed and exhausted? Does anyone have any thoughts/suggestions ?

Hello BIS
Thank you so much for your reply,
It was the lady I spoke to today at DWP because I wanted to send additinal info to her that asked me if I took the medication on the majority of days, and I refused to answer the question telling her I would send the additional information by letter, because I felt she was trying to catch me out? I also didn't tell her I had forgotten about the AD's.
I scored zero points because I didn't list that I had a mental condition in my initial application for PIP, DWP confirmed that to me today and I am not sure how to counteract their arguments for this to be honest?
I will take you advice and show them that brain fog is a known side effect of the medications I am taking, I will include it in my information and I will explain the the impact for each criteria.
I will read the guides again before I reply.
I really appreciate your time and advice.
Lali

Thank you so much for this advice.
It was the DWP who assumed that I take the antidepressants on the majority of days, I did not confirm that, all I wanted to do was to find out how to send them additional evidence.
I have not informed DWP that I forgot about the AD, because my doctor prescribed them just in case I needed them when I was feeling very depressed at one stage as I take other meds besides these.
The DWP again the same woman as above informed me I scored zero on each criteria because I did not mention in my initial application to pip that I suffer from a mental condition, I am not sure how to counteract their arguments but I will read your guides again, and explain the impact in relation to each of the specific criterias.
I will include information to show that brain fog is a known side effect of the specific medications I am taking.
I don’t think I have much chance of DWP awarding me the higher rate for DL, but I will read the guides again.
Thank you so much for your time.
Lali