I have been getting really dizzy lately and sometimes my vision gets spoty or goes black for a few seconds? is this a symptom for something?

Yes.: Everything is a symptom of something! in your case dizzy (if you mean sense that you might pass out) and greying/blacking out of vision indicates low blood pressure at the level of your brain. Are you dehydrated? If you can't correct this with good oral rehydration you should see your doc.

Low blood pressure: If this happens primarily after you get up from a sitting or lying position, it is likely due to the blood pressure temporarily being low. Try to get up more slowly. If this persists, see a physician.