I need orientation.

hello,
i've been having on and off a mild pain under my lower rib cage. its not really a big pain, but noticeable.
also, i've been a bit dizzy as of late, again nothing that makes my balance go away, but enough to feel a bit dissoriented. i had an anxiety event about the same time, which i have shared in this forum, and up until this point i was attributing this dizziness to my anxiety.
lastly i have notice that when i drink a lot of water, i tend to urinate more often than before. my girlfriend and i drank same amount of water last night and i went 5 times to the bathrooms and she just went once.
I did some blood test and they came out normal, except that they observed some enlarged plaquelets (MPV = 12.0 vs 10.5 normal range)... my questions are? what do you think are probable causes? what type of doctor should i see?

[patient915]

Welcome to the gastroenterology community!  I would recommend seeing your PCP about this.  It could be caused by anxiety or some other problem.  How old are you?