As you are laying down sometimes the wieght and pressure maked me feel sick and painful i have had 5 kids. Try to lay on side more and pillow between legs. I don't know if it will help but can't hurt to try
Its da end of ur pregnancy I was like that da last two months of my pregnancy until I had my son....
Unfortunately there is no advuce to give you, your pregnant and that's just part of it. You have some women who are sick throughout their entire pregnacy, then you have some who don't get sick at all and then you have some that only get sick in the morning.
So what I'm tryinf to say is everyone is different and you all you can do is continue to eat healthy, walk and rest until you have the baby. Best of luck to you :)