Symptoms came and went..

Hi! I’m 6 weeks and 6 days pregnant. I’m concerned that something is wrong. I was having normal pregnancy symptoms nausea, sore nipples, food aversions and feelings super tired and then all the sudden I’m having hardly any at all. My nipples are only mildly sensitive, my nausea is also very mild. I know I should be thrilled. Especially since my first pregnancy was horrible! But I can’t shake the feeling something is wrong. Anyone else have symptoms and then they seem fine? Help!