Why do I get dizzy and my eyes shake when I meditate and recite Buddha?

Normal, before karma appears, there will be various symptoms of karma, so don't worry too much, some will last for a long time.

Chanting Buddha is a very safe practice. Honestly chanting Buddha, one name can eliminate the felony of robbing life and death, and not a word will be missed.

If you are too tired, take a short rest.