Symptoms of labour? second baby.... 35.4 wks.... ?

This is my second baby..im having pretty bad cramps in my lower tummy.like period cramps. For the past 2-3 wks I've been getting bh contractions a lot. My midwife said its normal with baby #2. And to drink more water...loose stools for 3 days and I know I'm not dehydrated... Loosing my plug for a wk..no blood in it though. Do u think labor is near.. If she was born this early would she be ok? Also feeling lots of pressure and horrid hip pain! Along with what feels like Charlie horses in my upper thighs and lots of back pain! I'm getting nervous that she could come any day now...what do u ladies think. My next appointment is on the 1st... Ill be 37 wks then. Also this morning and evening I've felt nausious and actually got sick.... Are all these signs of labor approaching ?