Braxton hicks ? Week 35

Hi , I’ve been feeling cramps and lower back pain since last night ... the whole night had dull back aches and period like cramps . Not sure if it’s braxton hicks or something else . It went away in the morning . And feeling the same aches and cramps tonight ... can’t sleep properly due to the aches. What to do to relieve the pains and cramps ? #advicepls #pregnancy #aching