I would def ring them, your not a pain and they wont think that you are, 35 weeks is a pre term baby and its best to be on the safe side :)
starting to get a headache and back pain now so i should ring the midwifes and let them no whats going on ? I always feel like im being a pain when i ring them :S
I do the same thing dr said it's normal I'm 37 Weeks now
early labour.. I would go to the hospital and get checked out, dont know if they would try and stop it if it was early labour but it would best to get checked out