Thanks for your imput kipland.
I had the thyrogen shots this past October for my yearly scans. It was MUCH better than having to go hypo beforehand! However, since my major symptom when going hypo was nausea, I had that after the shots. But it only lasted for the two days of the shots, not for a month like it did before.
I'm sorry that I don't have an answer for you lymph node questions. I didn't have any troubles there.
Good luck!