I'm glad your husband's home. Having someone take care of you is comforting, even if it's just bringing you what you need.
I had never taken vitamins, but since my TKR I take a daily multivitamin. The iron pill was on top of a multi and I believe it was part of the constipation problems I had. The nurses said it was probably a combination of pills, so as soon as I could go off them I did.
But while I was in the hospital rehab for the infection my labs came up dangerously low in potassium, probably due to the huge amounts of saline they ran through me. So a nurse brings in 2 potasium pills. Real horse pills, about an inch long (in my eyes) and although I swallow pills regularly because I have Hashimotos disease and need synthroid daily, I could not get these pills down. So I called the hospital cafeteria and ordered 3 bananas for dinner, because I can eat bananas with no problem. Next labs showed I had HIGH potasium levels! So just be careful!