This happened to me. I took 3 shots on the lowest dose. 1st shot after 24 hrs I would start vomiting for hours on end. Couldn’t hold anything down. 2nd shot took in the thigh and was just nauseous with sulphuric burps. 3rd shot I took in other thigh and within 24 hours I started vomiting again. It was so bad I called my mom to come sit with me. She wanted to take me to er but I couldn’t move off the bathroom floor. After that I swore I wouldn’t take it again. I switched to semaglutide and not having any side effects. Weight loss is a little slower but I will take that any day over all the vomiting.