I had the flu, or some sort of stomach bug about two days ago. I am still having severe stomach pain, is this normal or should I be concerned?

Maybe. The norovirus canlast longer than the general "stomach bug' we are used to (24-48 hour). As far as the word severe, that may be troublesome. If you are having "severe' pains in your stomach, than see a dr. Quickly for an immediate evalutaion.

Related Questions

I've had the flu for like 4 days now also had a stomach flu at the same time my BP has been higher than normal is that ok or should I worry? 128/85

OK. Your BP is normal, albeit, 85 is in the higher end of the normal range. Illness of any type will raise your BP so the flu is the likely explanation for your BP and it will improve when you're better.