Symptom Experience?

I’d like to preface this by saying that I know calling my doctor is the smartest and most logical way to answer my questions, however, I’d like some feedback here first.

I thought for SURE I was going to get a positive test this month. I’ve been doing everything right and I’ve been gagging like crazy. I had a miscarriage in May and my morning sickness prior to that consisted of the same level of nausea, so it felt familiar. It turns out that I am frustratingly not pregnant (again), but am still experiencing the gagging. Does anybody have any experience with this? I can’t figure out what may be causing it. Thoughts?!