I had my first dose of Tymlos at my doctor's office without any issues at the prescribed dosage. The doctor did warn me that there might be side effects but I never had any of the issues some face with dizziness, light headedness, or a racing heart. It did elevate my heart rate briefly (10% higher). My doctor advised me to take it at bedtime so I could lie down.

Perhaps you can ask your doctor about taking your first injection at their office so they can monitor you?