I think I'm a mirror image of you. I only shower when absolutely necessary. I'm glad you wrote this post. I have a huge problem with my self identity. I hate myself for one thing and don't look in mirrors. I hate my body so don't care what others think or how bad I smell. I put a hat on depending on how greasy my hair seems. My therapist looks at me funny sometimes but oh well.I couldn't actually give a crap. I've stopped shaving (legs, armpits the whole shebang)
I have OCD as well so that hampers things, but my OCD is based on my PTSD obsessions of sexual abuse, so taking a shower is extremely hard. I take one if I'm lucky once a week. I definitely don't think you are abnormal or anything in the realm of abnormal. PTSD is a miserable thing and who cares what other people think?