Mouth ulcer, eye sty and tiredness

Factual Questions
1

Due to the fact that my 9month old daughter is teething at the moment, neither my wife nor I have been getting much sleep. Concurrently my wife has had a series of mouth ulcers and I’ve had a recurring sty in my eye.

My wife said that mouth ulcers and sties are linked to tiredness. I pooh-poohed the idea but now I’m beginning to wonder. Is it true?

I tried googling but only came up with a bunch of homeopathy and home remedy sites. Anybody know for sure?

2

This British NHS site confirms what I thought about mouth ulcers – they can be caused by stress and being generally run down, not simply by tiredness. The same would go for styes in the eye as well. Info here.