34 weeks pregnant with bad braxton hicks?

im 34 wks gone and for the last 2 days iv been having braxton hicks on and off.they are now starting to get worse and more frequent,then they go away for a bit and come back,they r quite painfull and its getting on my nerves.is this normal.sometimes i have 5 in ten mins and that carries on for ages.what shall i do.does this mean anything.will my baby be ok ?