@sallysworld73 So sorry. Hang in there.
Drugs can cause autoimmune disorders. My simple example is if I take ibuprofen, I will get a psoriatic arthritis flare.
Do you have lupus erythematosus ? This is from Medicine Plus:

"Ten percent of individuals worldwide are affected by autoimmune diseases, with systemic lupus erythematosus (SLE) being one of the most common.1 Drug-induced lupus erythematosus (DILE) was first recognized in 1945 with sulfadiazine as the offending agent.2 Since then, more than 90 medications from more than 10 drug classes have been implicated in causing lupus.1,3 DILE is estimated to affect 15,000 to 20,000 individuals each year and accounts for 10% of SLE cases.
https://www.pharmacytimes.com/view/drug-induced-autoimmune-diseases
The most common medicines known to cause drug-induced lupus erythematosus are:
Isoniazid
Hydralazine
Procainamide
Tumor-necrosis factor (TNF) alpha inhibitors (such as etanercept, infliximab and adalimumab)
Minocycline
Quinidine

Other less common drugs may also cause the condition. These may include:
Anti-seizure medicines
Capoten
Chlorpromazine
Methyldopa
Sulfasalazine
Levamisole, typically as a contaminant of cocaine
https://medlineplus.gov/ency/article/000446.htm#:~:text=Anti%2Dseizure%20medicines,Symptoms%20may%20include:
Having 3 or more autoimmune disorders is referred to as Multiple Autoimmune Syndrome (MAS).