I cannot tell if there are small bumps on the inside of my vagina but the opening slightly itches. There is no smell. Any advice before the doctor?

See a doctor. It's impossible to tell just from this description. Genital warts, herpes, or a yeast infection all may be possible. Or it may be nothing at all. You'll need to see a doctor or clinic for examination. Do it ASAP; some conditions (especailly herpes) are much easier to diagnose when seen within a few days after the problem starts. Good luck!