I know it doesnt really help and its kind of annoying to hear it, but remember that the morning sickness is a good thing... lots of good sticky hormones for bubs. I found those wrist bands for seasickness helped heaps with nausea, you can get them from the chemist. Gingerbeer is good too...
I hated being pregnant too, im terrified of getting pregnant again and DH is already talking about another!!!
I have just been through what your going through now, bad morning sickness with a crazy toddler on the run, i didnt have the pains but it sounds even harder!
Try and sleep when Tyreece is having a nap, i love my nana naps but sadly Xavier is refusing to have afternoon sleeps anymore.
Only 3 or 4 weeks left of the MS though so try counting it down, it makes it go a bit faster and gives you some light to focus on.
Theres not really anything anyone can say to make it easier for you, but try asking someone to help out for a few hours so you can get some YOU time... there wont be much of a chance for it soon. 2 kids is so much more crazy than 1!!!
Good luck