Is it normal to be feeling this way during pregnancy?

I am 8 weeks and i'm not having a lot of symptoms. When i first found out i was pregnant *around week 4* i had fatigue and sore and veiny . Between week 6 and 7 i was feeling a little nauseous but not vomiting. I went to the doctor for the first prenatal visit and she prescribed me some nausea pills. I also havent been eating well. I'm hardly ever hungry and if i force myself to eat i feel sick. I had a sonogram and the doctor said the baby was developing normally and is at the stage where it should be. I haven't had any other symptoms and the nausea went away and so i haven't had to use any of the pills. Should i be worried about my baby's development because i'm not having a lot of symptoms and that i'm not able to eat??