I tried Tymlos for 1 week and I even reduced the dose but couldn't tolerate. Constant head ache, racing pulse within 10 minutes of taking my injection, tiredness, and in general not feeling good. My doctor wants me to try Forteo. I hope this might work. I am 3 weeks in from back fusion surgery and my surgeon wanted me on a bone growth medication to increase the healing time and increase my bone growth. I have osteoporosis. Anyone else have this experience?