It depends on how many spines are involved and how much venom was injected, as to how much pain you'll feel. If it wasn't very painful, you didn't get injected too bad. If you get a lot of venom, it will not be "just a sting" no matter what your pain threshold is.
I wouldn't worry about an allergic reaction, even if you're allergic to bees. It's not the same venom.