Feel so stupid

So I posted earlier about how I went and got checked to see if I was doing ok. Well the monitors said that they weren't picking up any contractions. Ummm then why is my belly super tight and making me out if breath? (at this point I'm feeling stupid for even coming in) then they take me in an exam room to check my cervix. I'm just about a fingertip dialated and 75% effaced. This is my 5th pregnancy and never have I felt so stupid for going in. Apparently I don't know what a contraction is. I'm just being emotional I know but all I can feel now is stupid and weak for feeling tightness and immense pressure in ny vagina