multi vitamin formulated for men (energy)
fish oil (helps brain function)
b-complex (calms the nervous system)
vitamin d (happy pills and prevents many diseases)
magnesium ( helps the body maintain balance)
melatonin (natural sleep aid)
You'll find these at health food stores. But, research each one first. It's good to understand what you are taking. Your symptoms are stress related. Your body is out of balance. That's why it freaking out. You are going through a lot. That's why you need to stop and take care of yourself.
If you don't attempt to correct this properly, and you check into a hospital, an

MD will happily perscribe sleeping pills, antidepressants and God knows what else. Needless to say, those drugs do more harm than good. They are extremely addictive and will leave you feeling, sounding and looking like a zombie.