How does it feel like? Since my depressive episodes (approx. every 7 to 10 weeks) are usually short and don't affect my outside live much, i never felt the need to seek medical help. Is it still worth checking?
The rule of thumb is if you have any condition that you have experienced multiple times without the need for medical help then you don’t need medical help.
I have an appendix that flares up every few years and I leave it alone. I have a pain threshold that I have set that if I exceed I will go to the hospital, but if it stays below this level then I just watch and wait. I have no desire to be cut open unless I need to be. So far this has worked out well :)
You may have a less severe variant of bipolar disorder - https://en.wikipedia.org/wiki/Cyclothymia. If it doesn't impact your life though, it isn't a pathology, it's probably fine. If it starts to seriously impact your life, then you should look into it I'd say.
The most important thing is keeping you healthy and okay. If you're healthy and okay, then that's wonderful.
One thing I will note, over time, monitor if it gets worse, and be vigilant as hell - it can develop depending on your age and over time, so just watch out. I'd even go so far as to ask someone, preferably someone in your family you don't see more than once or twice a year, to say if they notice a behavioral change in you, just as a backstop in case.
For reference, what finally got me to get help was very serious thoughts of suicide and a hypomanic episode where I quite literally thought I was god.
I have an appendix that flares up every few years and I leave it alone. I have a pain threshold that I have set that if I exceed I will go to the hospital, but if it stays below this level then I just watch and wait. I have no desire to be cut open unless I need to be. So far this has worked out well :)