hi.. Dr Vinit Shah here.
According to your complaints it appears your eyes are very sensitive to bright light. Our eyes are designed such that excess light does not enter them as it can be harmful. However if you have had consistent such problem you need to have an eye examination at the earliest. It may be a case of eye inflammation or it may turn out to be of no importance.
You can for the time being use shades in sunlight. Lubricating eyedrops may also help, however nothing can substitute a detailed eye examination.
Feel free to contact again.