Ocular Migraines/Ocular issues?

So the last few days I’ve been having weird Ocular ‘occurrences’. I’ve had Ocular migraines before, but these seem to just give me the weird vision and go away in about half an hour. I don’t necessarily get the full blown head ache, just annoying vision problems. I do check my BP daily which is fine, so I don’t think it’s that. I did ask my Endocrinologist if it’s something that can be with gestational as it literally JUST started happening after switching to this diet plan last week (the low carb low sugar etc). They said typically no, maybe stress or caffeine. Any other Momma’s have this issue? It’s not debilitating just annoying, and always at work! (Maybe it is stress? 😆)