Most of these questions are answered on the board, read some of the posts in the HRT forum.
Plus, lots more info is needed before anyone can answer your questions or attempt to even help you regarding your problems.
1. Full panel of blood work
2. Primary or secondary causes?
3. Age, weight, diest...the list goes on....
4. Do some DD and read all the info that is avaiable here, you will find answers and the elders on the board will be more then happy to help.
Cheers!