You are basically a sample size of one and you can't say if the effects are placebo effects.Double blind studies suggest they produce placebo effects.. I know several people who developed an irregular racing heartbeat in addition to numerous other effects such as hypoglycemia ,muscle rigidity and twitching.As Mikey's link points out , even people who feel better often have only temporary improvement followed by permanent disability because these drugs hyperstimulate and kill neurons.In fact many of the symptoms we associate with mercury toxicity might actually be caused by using antidepressants for the depression caused by mercury.