I need some advice and encouragement please

Kristen
I am almost 14 weeks pregnant.  From the beginning until about the end of 11 weeks I only had nausea.  Then at the beginning of week 12 I started throwing up nothing in the morning!  Burp, gag, spit-normally nothing comes up-sometimes some remnants of food.  Yesterday, I ate after that and layed back down, feel asleep for about an hour, and went through the whole cycle again!  Then I just felt horrible the rest of the day.  I was able to eat a small lunch and dinner and it stayed down but the feeling was there all day.
I slept sitting up last night, and feel icky again this morning.  Any ideas? I have never had acid reflux before, is that what I am experiencing?  I don't eat a lot (but I do try get some stuff down). Do I need to call the dr or give it a few more days?
Any positive feedback would be appreciated.  This is my first pregnancy after 3 miscarriages and 7 years of trying.