[Mike]

I would look at your diet, keep a list of what you eat each day and how you feel each day. Sooner or later you will see a relationship. Every body has mood shifts, that is normal, bad diet can make it much worse.

If you eat a lot of processed fast/crap food, it can really tear you up. It could be something as simple as too much bread, too little meats, no fruits, etc.

Do you know any diabetics? Ask one to check your sugar level one to two hours after eating. You should be below 125 if I remmber correctly.