I don't know what to say anymore, these drugs are weird.
Mine's never been better, sadly my husband's left years ago. As for withdrawal I didn't get past 7.5mg without loss of sleep. Tring to get off Venlafaxine as well.
Two years since I took last took Mirtazapine. All I can say is the drug definetly lowered my testosterone levels as they recovered to normal levels after I quit. However my libido is still not quite what it should be. I started to see a sexual psychologist because it's very possible that the depression and anxiety that first put me onto mirtazapine is the root cause of my loss of lidibo rather than the drug. I suspect it's bit of both. I'd suggest asking your GP for a blood test to check hormone levels, there are options - injections - gels - that can boost levels if they are low.