Everyone is different. I tried Forteo before Tymlos was available. Even at a low dose, I had immediate tachycardia, palpitations, extreme shortness of breath and wooziness. I went to an immunologist and tried to get desensitized. With Tymlos, I had side effects that were tolerable but a delayed episode of atrial fibrillation. I started at two clicks out of the 8 on a pen and moved up slowly and have been able to tolerate it. Their methods of action are a little different. For me, Tymlos is at least tolerable. But many people do fine on Forteo. I wound not second guess your choice. It sounds like you are doing fine on Forteo!