Started having bad symptoms months after increasing

I’m currently on 12.5 mg of zepbound which I increased to about 3 1/2 to 4 months ago I believe. So far I’ve lost 20lbs! I’m thrilled with the results especially because for the first 3 months my symptoms were extremely mild. I only felt discomfort if I ate something too sugary or fatty, but that was manageable because I was trying to avoid those foods anyway. As of last weeks injection and now this weeks injection as well, I’ve been extremely nauseous and found it very difficult to get meals down. I force myself to have a protein shake for breakfast which I usually can’t finish until around 12, and then I’m only about to get through 1/3 of my lunch. Dinner is sometimes a bit better, but my serving is still pretty small. I know that many people have had much worse symptoms and I personally have never thrown up from the drug, so maybe Im thinking too much of these symptoms. I also constantly feel bloated sometimes i have some abdominal cramping. Im trying to get in an appointment with my doctor soon but it wont be for a few weeks. Anyone have a similar experience or any advice?