So tired of being tired

Im so exhausted but can't fall asleep this is very night for the past week and half. I nap fine during the day. I'm swollen and in so much physical pain it's crazy. I have a pregnancy pillow sound machine extra fans and blankets depending on the night.... SO is good about giving me back rubs and massages but the pain along my abdomen and lower back is getting unbearable the bursitis in my right hip driving me bit kernel since it's crawls down my leg and back towards my buttocks and Sammy moving around so much doesn't help. I'm 28 weeks and feel like I'm going nuts!

Any advice???