PIP Home assessment only 24 months into a three ye

Hi everyone.
I was assessed for DLA in 2010 and given a six year award. In 2016 I was reassessed under the PIP scheme and awarded high and high for a further three years up to March 2019. They sent me a form in March of this year asking if things had stayed the same or had gotten worse. I filled the form out with as much information abut my conditions some of those in fact have gotten worse in which I supplied medical evidence.
I now have received a letter for a face to face home interview this seems a bit over the top as I have an inoperable brain tumour due to its position in which I now have epilepsy, I have Stenosis of the spine. No feelings in my right hand, I can’t talk properly, I struggle to walk, I have memory problems, I struggle to make a meal go myself...the list goes on.
Is this normal ??? I am so upset and worried that they will take my benifits away...if that happens my life isn’t worth living.
Stuart

Hi Gordon. Thanks for your reply. All my evidence has been kept in order and up to date. The recent diagnosis of the Stenosis and problems with my legs was sent to the DWP and when these PIP assessment forms came through I sent copies of them again. To add insult to injury I had to have a medical assessment for my ESA even though I have been in the support group for over five years. the Doctor who I saw was brilliant she listened and wrote a full report on my medical situation which was highly favourable it explained everything to the point that I my situation setting aside the tumour was only going to get progressively worse to the point I would need an electric wheelchair as my upper limbs are week and wouldn’t be able to use a manual wheelchair. This report was sent off to the DWP and within two weeks they confirmed that I should be on the support group indefinitely. I sent my copy of with the recent PIP assessment forms so what more do the DWP need.
Regards
Stuart.

Hi Gordon. I understand that it is IAS that are assessment team then there report goes to the DWP to show how my disabilities affect my day to day life.but this will be my second PIP assessment within 24 Months along with the Medical assessment for ESA which all three have gone back to the DWP. Mi transfer from DLA to PIP seemed to go very well as I have a good friend of mine who comes with me on all my appointments as she deals with PIP and all other things to do with disabilities on a daily basis so all my medical problems are explained in full. My points were 20 for mobility and 24 for care so even she seems a bit baffled to what’s going on.
Stuart