Absolutely - everyone responds differently to different meds, which is why there are multiple meds, for instance, for depression. What works for one person doesn't necessarily work for another. Some people luckily respond well to the first med tried, others have to try more than one before getting relief. There's also the side effect factor; a med may relieve your symptoms but have side effects that bug you too much to keep taking it. It's not as scary as it sounds, but if you're going to try a med you need a good doc who's willing to work with you on finding the right med/s and dosage for you. Sometimes the first doc you see won't be the one you'll stick with, either; some are better than others, and sometimes it's just a matter of how well you get along personally. One thing we all need to know is that it's more than okay to be straightforward about saying so when you need a change, and that you have to let your doc know, because they aren't psychic
. I'm big on education about this kind of stuff.