Should I go to the hospital?

My belly has been tightening up since last night but it's not super painful cause I still went to sleep but I woke up and it's still happening. Its super uncomfortable but nothing compared to the real contractions I had that woke me up with my first. Has anyone else been in this situation? Do you think I should go hospital? 34 weeks. The only other reason I'm concerned is my calves hurt alot and my legs feel like noodles.