Random, Sudden Onset Extreme Fatigue and General Weakness

[PerverseImp]

Hello, all.

I am an eighteen-year old female. For last few months (perhaps four?), I've been experiencing some really weird symptoms and we're not quite sure why. Every couple of days, I have spells of sudden onset, extreme fatigue and exhaustion, accompanied with generalized weakness, some dizziness, a headache, and general malaise. The episodes do not seem to be triggered by anything specific and happen almost any time of day, though more often in the afternoons and evenings. They seem to be unrelated to my blood glucose, as I've taken readings during those times and they're normal. They also seem to be unrelated to the amount of sleep I get and my sleep patterns. I have no history of major illness, excluding polycystic ovary syndrome. The only medication I am on is hormonal birth control to control symptoms of PCOS. I have fairly recently had a number of blood tests done, and my TSH and CBC results came back normal. I also had a complete metabolic panel, and everything there was normal, with creatinine and BUN reading low. I have no history of anemia, except where readings are a little low immediately following a blood donation. I always recover within about a week or so, and don't experience any symptoms from that. (I have not had ferritin checked, and I perhaps should.) My eating habits vary a little, but I make sure I drink enough water throughout the day and always eat fresh fruits and vegetables, so I don't think my diet is contributing much, if at all.

This is all all a little worrisome, because I've never experienced anything before. It's a little scary to go from feeling entirely fine to being overcome with sudden exhaustion, weakness, and a headache in the matter of a few minutes. My doctor doesn't seem to see an issue, but I'm strongly considering seeing someone else. Any help is appreciated.

Thanks!

[Gilchristj]

Be very careful it's not an electrolyte problem.  Essential for life. Ask your doc to check it out.  I ended up with metabolic acidosis.  Have u been on a diet?  

[Emmaspon]

Get iron and ferritin stores checked as well as your thyroid. This can be done through blood work!

[RyanThea]

This sounds a bit like dysautonomia, you might want to look that up. I'm in the process of getting diagnosed. It's very common in young women - the autonomic nervous system essentially fails to regulate itself, and in the process many bodily functions can be disrupted. It tends to be episodic and difficult to diagnose, unfortunately.