I have innapropriate sinus tachycardia, my pupils are different sizes is this related to this heart condition?

No. Anisocoria (different pupil sizes) can be a)normal, b)due to eye disease or c)due to very serious brain disease. Since you're on the internet writing this question, "c" has been excluded! it's not due to your heart rhythm.

Related Questions

Been diagnosed with innapropriate sinus tachycardia, had every test done to rule anything else out, want to know why me no family history of heart?

May be. The autonomic nervous system that is at fault. This system is divided into two channels. E.G. The heart is accelerated by the sympathetic branch and slowed down by the other parasympathetic branch. This kind of imbalance can be initiated by poor diet especially simple carbos. Read more...