Those are mine as well. And often my head feels very heavy, as if it's too heavy for my neck, which throws my balance off even more.
My opthalmologist mentioned astygmatism, and adjust my lenses for that, only it made it worse. I'll be returning for another attempt.

@tcainaru this is all new to me.. but yes I have been light headed, short of breath and my walking seems to has become more difficult..