Little black dots swamming

So on Boxing Day (26th dec 24) I decided to do the last mdma trip before I quit forever hopefully I took roughly around 1000mg then about 2 days after the was big black dots on my ceiling that would turn into a swarm of bugs that would turn blue and run round my ceiling for maybe 5-15 seconds but you would have to focus for that to happen but it only lasted two days but it has come back not as strong as the last time but if I focus hard enough they will start swarming again is this a hppd symptom as I also have a light tv fuzz like film on my vision