Wow i had the same feelings. I also thought about supplementing some copper just for a month and maybe a bovine desiccated beef liver capsuleYeah, I tried taking iron bisglycinate twice and both times felt very bad and sick for 2 days. Like everything felt inflamed, my gut, my liver, my brain, my joints. One of the most horrible supplement side effects I have ever had. Also terrible psychological effects.
I think my iron values got low because I had low serum copper and ceruloplasmin levels for so long, but thyroid raised them back into the normal range, too.