asthenopia: achy feeling in our around eyes. not dangerous at all. not emergent at all.
asthenopia? WHAT'S THAT? AND IS IT SOMETHING I NEED TO GET CHECKED FOR IMMEDIATELY IS MY FUTURE VISION AT STAKE?
ASTHENNOPIA? WHAT IS THAT?
the pressure feeling could be sinuses, yes. could also be "asthenopia" or eye/head discomfort caused by your astigmatism correction.
the occasional "dots" are probably floaters (intraocular debris) if they are small & black or grey.