Hi @Mic80,
I have not had this side effect from chemo although swelling can occur with allergic reactions. I don't know how long you have been finished chemo but sounds like it might be awhile ago. If not check with oncologist. If you have only just started the anastrazole maybe also check with your DR.
About 18 years ago I had a tracheotomy (it's a hole in your neck you breathe in and out from) for a super bug that cut of my airway. I had that tracheotomy for 5 weeks and was only fed via a tube down my nose to my stomach.
Once I recovered and the tracheotomy tube was removed my throat seemed smaller and it was harder to swallow. It still is on occasion for me. As a result I eat smaller mouthfuls of food and chew my food really really ell before swallowing. Other than that chop everything into smaller pieces and go for foods with sauces to help swallowing.