Am I crazy?!

Emily • Married. 5 year old son. 2 year old daughter. Pregnant with our last.
I am 18+5 today. Everything has been going pretty smooth lately besides hypermesis, but other than that no issues. I have this awful gut feeling today that something is wrong? I've been having cramps in my lower belly, which isn't really too concerning, I just can't shake the feeling that something is up! I don't want to go to my doctors when I have no actual physical reason to! This is my second pregnancy and I never felt like this with my first. Are the lower abdominal cramps normal? They aren't painful but they are quite uncomfortable. I don't know, Im just rambling but I'm not sure what to do. I feel silly :( lol