Welcome back SWTPEA, sorry to hear you are not feeling well. Congrats on 7 months and your new job though, that's big news!
Regarding your energy - there are a whole host of possibilities there. It does take time for our bodies to heal, but there are so many other factors to consider like Diet, sleep, amount of exercise, etc. Have you been in for a health screening to make sure things are OK from your general health standpoint?