Go back on Medication?

I suffered with post natal depression for years and it took me 2 years before i would even admit that i had a problem and took antidepressanst.

Nearly a year ago i came off the tablets and after the side effects of withdrawl subsided i felt great, but the past few months i dont feel 100%, not depressed in the way of crying and feeling unsocialable, but i feel so angry all the time like ive got permanant pmt, i have no patience with anyone and get annoyed over things people do and say that i woudnt usually, sometimes i feel like im shaking all over but am not its just a feeling of uptightness and like i feel like screaming on the top of my voice to get rid of all this tension inside, i really think its a shame if i go back on the tablets it took me years to come off them, there must be other ways of helping this?, i just dont know what to do for the best, i know i must be a nightmare to live with my poor husband and kids.

I know will have to go to HK for that, as dont do those tests very good here