Yes, do contact your surgeon about your swelling, etc, and I would ask to be seen if you are concerned things are worse.
I waited a little over 6 months before trying to get bras. I wanted to be over the main tenderness and swelling. Medicare covers a prosthesis and 12 bras a year. I think I have that number correct. I have friends who swear by Knitted Knockers. Those are knitted and poly filled prosthesis to slip into your own old bra or a new pocket bra. They are handmade by ladies all over the world and free for the asking. I was given one but need to try a larger size. They are very light weight.
It is easy to overdo once you start feeling good. Hope you can get some answers to your issues. We all just have to hang in there, don't we? Harder some times than others.