ouch no that's not good especially if you are sensitive to caffeine. Emailed my aunt who's an RN and this is what she said:

Drink at least 32 ounces of water to help your body begin flushing out the caffeine substance. Drink all 32 ounces in a period of five to 10 minutes to begin re-hydrating your body and restoring minerals that might have been depleted by the caffeine.

Eat one to three servings of fruit or other citrus food high in vitamin C to help restore the minerals sapped by caffeine. Caffeine alters the plasma, whole blood and leukocyte levels regulated by vitamin C concentrations, resulting in a vitamin deficiency in cases of caffeine excess. Make a fruit salad of sliced apples, bananas and oranges to help your body combat the vitamin-leeching effects of caffeine.

Repair the anxiousness and general stressed emotional effects caused by caffeine by taking time out to relax. Set a digital timer for 15 to 60 minutes and select a quiet, solitary area where you can comfortably sit and meditate. Close your eyes and focus on your breathing as you allow your pulse to slow to the rhythm of your breaths.

Don't know if any of that is possible for you but maybe something in there will help. I left out the lecture about how bad soda is for you because who needs a lecture on that but as a RN my aunt loathes soda pop.