Thanks for the information.
Based on the information you have given, it seems that either you had a vitreous
hemorrhage (bleeding in the vitreous humor i.e. space in front of retina) or a central retinal vein occlusion (occlusion of the main blood vessel draining the retina).
In both the conditions, there is marked decrease in vision. The retinal laser is done to help absorb the blood and to prevent further bleed. Vitreous hemorrhage usually resolves slowly over days. Central retinal vein occlusion (CRVO) takes time to improve depending on the type of CRVO.
It is more than 3 months now since your laser application. You definitely need a follow up with a retina specialist. I can understand that you felt harassed by your previous experience. But at present if a complication is occurring because of the bleed you need to be treated fast. Otherwise you might land up with permanent blindness
in the affected eye. Also, if one eye is affected due to diabetes, there are high chances that same complication can occur in the other eye also. You need treatment for the affected eye, along with evaluation of the right eye for need of preventive care. So, if you are not able to get an appointment with another retina specialist, do consider getting an evaluation by your previous treating retina specialist to prevent permanent loss of vision.