I have been taking Doxycycline, and Azythromycin for 2 days now. I have had a total of 3 doses (I have not taken my evening dose). I have developed a very strange change in my vision this evening. Large areas in my field of vision that are blurry. I feel dizzy. I don t feel safe driving, I don t feel right walking across the room. Could this be a side effect of the antibiotics? That is the only change in medications I have had recently.