Definitely check with your MO but they do sound like some fairly normal side effects of treatment. I also experience the pain and discomfort on the left side where I had the greater dose of rads and neck dissection. It wouldn't be unusual that your throat is a bit narrower due to the rads.

The pain on your scalp could possibly be a touch of peripheral neuropathy. I got a pretty nasty case of it and was treated with Lyrica and Tramadol.

Good luck and continued healing.

"T"