A second opinion is always a good thing, but if your Doctor has diagosed it, then he needs to provide a solution so that you can rule that out, or find that, that is the cause...

Did he suggest anything to take ?

It can also be mini migranes, too much thinking, things worrying you in which case, you need to take lots of deep breathes and tell yourself that nothing worries you anymore and see if it eases.

Sometimes, physcologically, we cause ourselves problems as well, not medical, and we can help ease it in understanding.

But, do go back, do ask the questions and do ask for assistance in easing whilst perhaps, telling yourself daily, nothing worries me, every hour, to see if that helps as well.

No harm in trying conventional and non conventional...

CW