Disability benefit

Hello. I know that this question might be random, but I was wondering if having protracted withdrawal symptoms would qualify you for PIP (UK disability benefit)? Has anyone had any experience? This illness has disabled me to such a degree both mentally and physically that there’s no way I could work and the little job I used to do online from home has become impossible to keep up as I’m really ill. I’m not pretending or want to go the benefit route, but what if I must? I kind of feel guilty to apply but at the same time I can’t work, I can barely function doing basic housework and that takes SO much effort and energy as it is that I practically force myself to do these things not just because they have to be done but because I must try to keep going. Do any of you receive disability allowance for your illness? Thanks.