I took seroquel (quetiapine) for 5 months, i stopped taking it 6 months ago, yet, all of the side effects still remain, penis shrinkage, uncoordinated etc. why?

Possibly not related: If no Seroquel (quetiapine) for 6 months, yet have concerning symptoms, it is very unlikely that the Seroquel (quetiapine) had anything to do with those symptoms, EVEN IF they showed up at the same time as you started Seroquel (quetiapine). Talk to your doctor, and reassess the entire picture of your health. As an aside, more people with ADHD are finding that they may be gluten- or milk-intolerant; discuss a milk-gluten free diet.