I'm sorry you're having all this sleepiness. I get it too from time to time, esp. when I can't keep busy (but you said you have been.) Sometimes a 10-min. nap on the couch will snap me out of it, sometimes it makes it worse.
Diagnosed: Fibromyalgia, Meniere's, elevated liver enzymes, skin grafting on back, arthritis, scoliosis, lumbar disc damage, sciatica, IBS, migraine headaches, skin cancer surgeries on face
Meds: Nortriptyline, Clonazepam, Darvocet as needed
Multivitamins, l-lysine, probiotics, magnesium, malic acid, calcium + vit. D, vit. C
Be yourself. Everyone else is already taken.