Survivor since 2012
All of the post-treatment meds -- Femara, Tamoxifen, Aromasin, etc. -- have some side effects. I've been on all 3 of these and have had all of your symptoms! I don't know if I've ever found a way to settle all of the side effects, but the typical stuff -- sleep, exercise, diet -- helps.
Even if you feel too tired to exercise, force yourself to walk around the block or up and down the driveway. Keep a regular sleep schedule and get a mild sleeping pill if you need it. (Non-prescription med: Melatonin.) Eat the right stuff so your metabolism is balanced and be sure to drink plenty of water.
Like I said, the symptoms never have gone away completely. I think I'm just used to them by now!