Not sure I would trust anything on Wikipedia to diagnose my health problem, but to each their own. You say you're not tired, but oversleeping can make people pretty tired, actually. Not getting enough exercise can make people pretty tired. Now, I'm not sure tiredness causes such a thing. I'm thinking more that it's an irritation from something in your bedding or your clothing or in your house, and if you're in your house all the time allergies to things in it will get worse. If, on the other hand, it happened while you were exercising, it might be prickly heat, which is quite annoying but you don't get that sitting around the house or sleeping. I'm not sure what a doctor would actually do for you, as there's no rash to look at, and as said above, taking things to numb it won't make it go away, only finding the cause and ridding yourself of it will do that. Any chance it's emotional?
The feeling of little invisible ants crawling on your skin can happen for a lot of reasons, including static electricity from nylon or other synthetic fabrics, having various diseases or conditions, taking certain drugs, or going off certain drugs.
There's a long list on Wikipedia of what might cause it, including some things you could doubtless write off immediately but one or two that might be worth considering. (For example, herpes zoster (shingles) or SSRI withdrawal would probably be more common than mercury exposure). And some of the things, you would know if you had them by other symptoms, so you could write those off too. Here's the list.
- pesticide exposure
- mercury poisoning
- diabetic neuropathy
- skin cancer
- syphilis
- Lyme disease
- hypocalcaemia
- herpes zoster (shingles)
- neurocysticercosis
- stimulant intoxication or withdrawal (meth, cocaine, ecstasy)
- opiods
withdrawal from
- alcohol
- benzodiazepine
- SSRI/SNRI antidepressants
- tramadol
The point would be to try to figure out a cause, rather than just taking a pill to block the feeling. On the other hand, if the pill fixes it, that's better than dealing with the insects-crawling-on-you feeling!
Can you see if your doctor can call in a prescription refill before your appointment?