After my 8 weeks mark I never got nauseated, now that I'm 19 weeks it seems like it's coming back, is that suppose to…

my nausea was gone by 11 weeks, and then all of a sudden at like 18 weeks I got sick every night for a week. nothing since then tho. my OB said it's normal for it to come and go.

ive been struggling with it my whole pregnancy! totally normal:)