Wherever did you get this idea that people don't get help from doctors??
If you feel like you won't be able to manage this on your own (e.G. By trying to relax, workout, eating right, occupying your mind with other things, etc.) then you definitely should go talk to a doctor and get some calming meds prescribed.
The meds work, and they help a lot. It's just that it's not always possible for a doctor to prescribe you the meds which are right for you, so it could be a trial and error process, but eventually you'll be fine.