Couldn't sleep at night. It even help!

I started ocd medication a month back it did wonders i am nearly back to normal but I got sleep issues started zolsoma 5 worked well but started waking up in between so I stopped it after 18 days then tried melatonin fast and up the second day I felt body burning and went to hospital they diagnosed thyroid and did an anti allergy medicine which made my hives dissaper(hives are present from 4 months cause unknown, now possible b12) I'm fine for sometime but my breathing didn't improve but got only worse over time today I couldn't sleep at all and when ever I try to sleep I feel congested near throat and nose but when awake things are fine atleast breathing for sometime is fine but when I walk it will clear things for a moment please help me what am I suffering from also stopped aripiprazole today only didn't take melto fast and cardiologist gave me flupicot p can I take it at 1130 pm now I did not take coz I'm afraid despite it being ok at morning will it even help