Rough feeling teeth

I've been having a few weeks of minor dental problems. I've been to 2 dentists, neither can find anything wrong with my teeth. No decay, infection etc but sinusitis was suspected. I had a week of penicillin and halfway through my teeth started to feel rough in a few places. I'm always careful to brush and floss properly, I haven't changed my toothpaste. I had a scale and polish 6 weeks ago. Has anyone else experienced this?

Rough feeling is not a problem as it does not indicated and gum problem or decay 

You're not have any pain right? And you're not experiencing any fever? And the dentist have cleared you as far as your teeth go. I wouldn't worry about it. Just continue to do proper dental care and I think you'll be fine.