I Am A 62 Year Old Female. I Have A

I am a 62 year old female. I have a history of opiate abuse 15-90 MG a day for about four years. I am now in a suboxone program (7 weeks). I feel well and relieved to be getting the help that I need. I am taking 4mg film. I also take daily, losartan 100mg, Cymbalta 60mg, welbutrin 150 mg, folic aCid 1mg, methotrexate 2.5mg 5 at a time once a week and humira once every other week for rheumatoid arthritis. I also take otc vitamin D, low dose asprin and iron. I have always taken these all at once with no problem. For the last couple of years I have had spells where I get very nauseated and vomit for seemingly no reason.
This will last just a few minutes and then I am fine. It happens randomly I may go a week to a month in between these spells. I assumed it was from my addiction to the opiates. I have noticed however since I have been taking the suboxone, when I take my other medications I will get nauseous and sometimes vomit I have been trying to split them up and this seems to help. I am still having the vomiting spells. It doesn't seem to matter what I eat or don'the eat. I also seem to have hot sweats (since I started the suboxone) a lot even when I am not sick. Any Ideas?
Thanks you for your help. Dianne