is this it???? last night i was getting BH more and more frequently (tightenings and could feel my hearbeat quicken it felt like in my throat) and then this morning at 5am it was accompanied by increasing amounts of period/back ache. had a really painful one about an hour ago which got me out of bed. have just had a bath and nothing since, just little aches and pains as usual. are they just BH on a grander scale or the start of something BIG? its my dp birthday today, dont want to panic him unnecessarily!! am 40+1 , would appreciate the reassurance/encouragement!