Thanks for your query.Based on the facts that you have posted it appears that you have pain in testicles if not having a sex for few days. This is but natural di=ue to stagnation of sperms in the testicles.
Excessive watery discharge through penis is due to excessive secretion of the glands located in urethra
.which get stimulated reflexly during foreplay.
All other problems are due to anxiety
and mind related. Please do not worry this will get resolved over a period of time .Try to have sex at regular intervals may be thrice a week so that testicles do not get studded with sperms.