Gotta stay positive. Symptoms can come and go and you are at the second trimester which means that a lot of those symptoms are going to abate.
I'll cross my fingers for you. You can always call your doctor/midwife, etc. if you are worried. I'm considered a high risk pregnancy and was with my son too. That kind of freaked me out with him. I would call them with anything and they always calmed me down. The nurses would have me come in sometimes when I was really worried and let me hear the heart beat so I could know everything was ok.
Shyla, I don't ever have pregnancy symptoms, with the exception of a missed period, so don't worry. If something bad were to have happened to baby, you would know within a couple of days. If you're not having any bleeding or cramping, you should be just fine! Good luck, and please KUP!