4 mgs of caffeine is very slight. A normal cup of coffee is 80 mgs. Experts say a single serving of caffeine per day is OK. Morning best.

TisT,

How many serving of coke and coffee do you consume each day ?

What symptoms are you still struggling with ?

Coke has half the caffeine of most coffee but much more sugar. Artificially sweetened sodas contain brain poisons that make caffeine look like pure water.