PIP agoraphobia and multiple illnesses

I am currently filling in my pip form transfer from DLA and I honestly can see now way out other than suicide.
I have multiple illnesses and agoraphobia, diabetes type 2 , p.c.o.s, n.e.a.d, asthma, Fibromyalgia, obesity, full hammer toes on both feet meaning buying shoes is impossible and they come from the hospital I can barely walk because of the pain, depression, social anxiety, panic attacks, multiple food allergies Inc latex, eggs, strawberries, lactose intolerance, carpel tunnel syndrome, anxiety..
I cannot cope with visitors to the house any worry or stress gives me fits and panic attacks.
I get cellulitis alot and have to get antibiotics before it gets too serious.But to do that I HAVE to go to the hospital at 3 or 4 am in the morning when it's deserted you see one porter then no one till the out of hours gp who gives you the pills straight away as no chemists are open.
I go out only if it's an absolute medical emergency only and only with my husband it makes me so ill with worry before hand and afterwards as I get so stressed and panic.
my question is this reading the help guides on here says in a nutshell p.i.p have changed the rules so it's much more difficult to say you have agoraphobia and going out.what do I do? they can't come to me I find it very difficult but will go to them BUT, only under the strict rules I have given myself. And if it's life or death situation.And also new appointments with the diabetes nurse who I rang and did a phone appointment then as I cancel appointments if I can I can't see anybody but she's so nice and understanding and sorts things out for me.
How do I explain all this to pip? I can't have a home visit as I cannot cope with strangers ? I would be willing to do one visit to then if it was quiet and not busy. But that would jeopardise my I can't go out reason.im sick with worry and don't sleep well,.i will lose dla soon and pip is all I can claim if I lose that we lose the dla car too, I would rather die than loose my pip/ dla claim there's no way I could work all I do is sleep at the wrong times as I have been lying awake worrying and are so exhausted I eventually go to sleep i have medication tramadol, lyrica, dolsulapin and double everything if i haven't slept for days.
If anyone cares HELP!! i have had the form extended till 30/10 I desperately need help.Thank you for listening, I'm sorry it's long!