Sleepless and depressed

Hi I’m 30 weeks and I’m unable to sleep. I turn on my left side I get cramps. I turn on my right I can hardly breathe and have my legs cramp up due to my sciatic nerve. The pain under my groin at both sides intensifies. I can’t sleep on my back because that is harmful for both me and the baby it also makes me gasp for air. I get less than 5 hours of sleep daily. Spoke to my doc and no reasonable solutions are given. The pain killers are useless. I’ve been placed on high risk clinic because I constantly feel like I’m going into labour. Any comments, suggestions, anything that can HELP.

I’m getting really depressed at this point. Lack of sleep does that also going through this for about the last 5 weeks as well.