Yes, I have been there-too often. When they misdiagnosed my MS--first they said it was chronic fatigue, then had severe liver problem so they attfbuted it all to the damaged liver--I got this way often.
Ended up using mega doses of Niacin--worked to some degree.
Now I use mega doses of vitamin B1 and a lot of other vitamins and minerals--
check out this protocol, Dr Klenner's--quite helpful for me:
It takes time to be fully effective, but you should notice a differece fairlyquickly.
Here is the easier abbreviated protocol, which i am now pretty much following (except have not yet gotten acetic acid):
...should a given patient's physician refuse to administer this schedule, I have this recommendation:
-One gram thiamin hydrochloride one hour before meals and at bed hour, and during the night if awake.
-Niacin taken at the same time, and in amounts sufficient to produce a good body flush.
-Two hundred mg. calcium pantothenate and
-100mg pyridoxine before meals and at bed hour.
-Ten grams ascorbic acid, taken in divided doses.
-Amino acetic acid: one heaping tablespoon in a glass of milk, four times each day.
Naturally, the full schedule will afford more dramatic response
and as I said above, I need to stay off the things I am allergic to, or I can't operate at all.