Just had (2hrs) transvaginal ultrasound to look at an ovarian cyst.now have pain from pelvic area radiating up to abdomen & bloating. should i be worr?

Possibly: How big is the cyst? What are its characteristics? If a cyst suddenly ruptures, then it's possible to have some pain which will pass with some time and ibuprofen/advil. If the pain persists and worsens, see a doctor because it could be hemorrhagic (bleeding). Good luck! Consider birth control pills to prevent ovarian cysts from forming.