Wa'alaikumassalam! Aiyo, that sounds uncomfortable betul. Please go see your doctor or eye specialist soon, mata issue during pregnancy dapat jadi serious, especially dengan bercak darah tu. Better safe than sorry, especially at 22 weeks. A few of my mum friends had similar eye things during pregnancy (hormones can really play havoc!), but they all needed proper check-up to know what's going on. Don't delay on this one, okay? Get yourself checked out ASAP so the doctor can see what's happening and make sure baby is fine too.