I overdosed on excedrin migrain yesterday at about 6:30 am. I took 17 capsules I went to the ER and I was there all day the couldn't get my heart rate down or some kind of blood levels down. They finally did its been about a full day since I have taken them and I can't sleep my heart is racing I'm dizzy and feel nausea is all this normal and my stomach really hurts

Yes, so you follow their instructions and contact the doctor if you need to.

There is no drug in the world that you can take as much as you want. Excedrin Migraine contains Tylenol, aspirin, and caffeine. Of course you can't sleep and are dizzy! Your stomach hurts because aspirin burns the stomach. Tylenol in excess affects the liver and kidneys.
Clearly you need help for your headaches, so please see a regular clinic for proper treatment. If you already know that you have migraines, you can get prescription drugs for that specifically. Excedrin Migraine is just a start to see if it helps before needing more.
If you overdosed for no reason other than depression, then please see a therapist.