Bookaren,
Yes, it will get better. A rule of thumb we have used around this board is "1 month of recovery for every week of radiation." Although everyone is different. I, too had false energy once or twice but not for long and it took a while for me to build up little by little. It will come. Being able to get proper nutrition will help.
There are a few of us that have had the tingles down the neck/back/ hands. There is a name for it that escapes me. It will go away in time. I'm not sure how long mine took, but it just vanished.
Glad you found this board, please do a search of previous messages to help answer some of your questions. And the search on the main site is very useful. I also found this place after treatment and wished I had found it sooner. It's much more informative than my doctors were.
Take care,
Dinah