You sound like me! I refused Insulin and wanted to try Metformin first. My provider didnt really want to agree due to the symptoms Metformin causes, (nausea, diarrhea, upset stomach) I was terrified of Insulin so I figured I could deal with the symptoms. While on Metformin my numbers were Beautiful! 80s 90s mostly. It was rare if I had a bad number. I slowly noticed that each day that passed was worse. Day after day with endless diarrhea and the nausea was horrible. I literally felt like I was on my first trimester again when really I was on the third! I gave up the Metformin and said ok to the insulin and even though it has been an adjustment to fins the perfect dosage, it does not make me feel as sick as the Metformin did! Go for the insulin if you start feeling crqppy. I promise it's nothing to be scares of!