i posted a thread like this much earlier, it should be near the top
some fellas suggested potasium definicent, however, i think we need to know what type of diet you are on (what kinds of food you are eating) to be able to figure out what is wrong
i never felt jittery, but i was tired and had mass headaches
the bros, also said yes your body is adjusting and it does get better
i hope this helps