Ha, yeah, doctors say that about just about everything that's a bit abnormal just to get you out of their office. Was told similarly for two conditions I still have. It sounds better than "Uhh I have no idea what that's about, there's 68 patients waiting in line, good luck".

The way I see it, medicine is about trying to fix a black box with absurd levels of complexity that does not follow any sensible design, where every body is not even arranged in the same way. All that without a manual and only rudimentary tools. They mostly just guess based on statistics and hope for the best, they have no idea what they're doing and if at all possible they try to let your body resolve the issue on its own because it'll do less damage.

Still usually beats the alternative though (i.e. nothing).