Hi there and sorry to hear you are feeling so unwell. If I was you I'd ask my doctor for a referral to a dermatologist/skin specialist to look at the skin marks and see what they think. Maybe its something which may be quite recognisable to them. Often generalist doctors really don't know what skin afflictions are and you really need to see a specialist.
With regards to feeling tired, not sleeping and having panic attacks, suicidal thoughts and dental deterioration I would ask you how long have you not been sleeping? When the body doesn't have time to recharge and get a good night's sleep, often panic, Depression and health deteroriate. I would try and focus on getting your sleep patterns back to normal. How long do u sleep if at all at night and how long have u been having the insomnia, is it chronic? Little things like high grade lavendar essential oil and relaxtion techniques have really helped to assist me sleep as I have suffered chronic insomnia as well. Are u still taking the antipsychotics? If you have stopped taking them maybe you are having withdrawal symtpoms? Also don't rule out having some sort of allergic reaction to some of the things you are taking... eg maybe something in the parasitic cleanse may have caused an allergic reaction.
It is very hard to determine what and how is making you feel this way. I would suggest keeping a detailed diary about what you eating/taking so you can learn what the triggers are for breakouts and feeling unwell. Maybe also seeing a good natural therapist might help sort things out. Just don't overdo any of the cleanses and try and be gentle on your body. Also, I wonder whether the body building might have been too harsh on your body as well? There are so many things to consider. Were u on supplements etc for body building?
Anyway, hope you are feeling better, all the best.