some silly questions from a first timer.....

I know I should just ask my midwife but I just want to get the opinion of you lovely ladies before I completely embarrass myself...
History is... im 34+4 and lost a larger bit of my plug on Monday and have continued to lose little bits through the week...

today I have bad a particularly bad day of braxton hicks, they started at around 5am, and carried through every 20 mins until 11
30am they where strong enough to make me pause and breathe through. at 11.30 I had 2 that were milder (carried on talking etc as normal and half hour apart. They then fell back into 20mins apart until about 6pm when I had 4 over 2 hours in a similar pattern as my morning "break". They never got closer together except over 1-2 contractions when climbing stairs, walking around shopping etc, when they were aboit 15 minutes apart. At the moment they are sporadic again- I havent been timing but my guess is still 20-30 mins apart, some mild and some a bit stronger. To me it seems odd, ive only ever had clusters of 5-6 at a time, perhaps 2-3 times a day, this seems really full on.
I dont know if this is normal progression as pregnancy advances or I should be talking to midwives... I just dont want to look like a complete idiot
(at the moment my plan is to ride it out tonight given they dont get closer and call in tomorrow if it continues)

TIA