I have astigmatism is that why im so sensitive to light?

No: Astigmatism will make things blurry and does not cause eyes to be sensitive to light. Best to have an eye exam to diagnosis accurately and treat the condition you have.

No: Astigmatism is an abnormal shape to the cornea causing blurriness. If sensitivity to light is something new, please see an eyemd, as this may be a medical problem. If its something you've always had, then its probably just the way you are, in any case probably needs to be evaluated just to make sure its not a medical condition.