2nd cortisone shot in elbow yesterday.was wide awake until 430am only to wake up at 8 wide awake. today lightheaded and i can feel my heartbeat.normal?

Expected: Cortisone enhances your body response to your body's own adrenaline and norepinephrine and thus leading insomnia and strong heart beats from high doses often happens. Your lightheadedness may well be from lack of sleep . However, if this gets worse or lasts more than 2 days. Call your doctor

Sideeffect: Insomnia is uncommon side effect of steroid inj wheater it is given i m oe in the joint some feel more then others but should gradually subside.