Feeling a lot better today but worried because of the lack of symptoms


Im 7 weeks and 6 days today. Been experiencing a lot of symptoms since finding out I was pregnant including nausea, sore breast, cramps etc daily but woke up today feeling normal no soreness or nausea. Took a pregnancy test and it did still come up with two lines but lighter than some of my test from a couple weeks ago? Is that okay? Just feeling weird, had an ultrasound at 6 weeks and 4 days was told everything looked normal and their was a heartbeat.