Thanks for posting your query.
I understand your concern.
symptoms are most usual. The symptoms are Irritability, Intense head ache, impaired concentration, Tension, Drowsiness
, Disturbed sleep, Increased Appetite and even increased blood pressure. I suggest you not to worry. Stop thinking over it. Involve in something which you enjoy. Try somethings like Lozenges, Inhalers and Gums.
I hope i answered your query. I will be available for your fallow up query, if any.
Wish you a good health.