Just an update:
after a couple of weeks he went back to his usual self and color, even through the winter all the way to about 2 months ago he started exhibiting the same behaviors again
his color is alot darker and hes seemingly lazier, although hes still eating perfectly fine and drinking too.
Eyes are fine too, very alert and googly.
checked my lights and they are still going strong, I've had him 3 years now but still can't think why he does this during feb-june
he also seems to avoid the heat/main light, and hangs around the middle of the cage.
I've attached photos, the duller colored ones are from the past few weeks outside (i didnt take him out during the colder weather/windy),
the slightly more blue was around Jan