I've been taking Venlafaxine for around 10 years and at varying doses. Currently on 225mg which I take at night and have been on this dose around 4 months.
I was diagnosed with ADHD through a private clinic in the spring and I was started on the stimulant medication Xaggatin. This was titrated up to 54mg and although I found great benefit from it in terms of focus and concentration, I was still procrastinating like crazy. I was then changed to Elvanse 30mg around a month ago. This dose is awful and it'll definitely need increased at my next appointment next month.
Anyway I had a GP telephone appointment last week and he was horrified to hear I was on Elvanse alongside the Venlafaxine, due to the risk of serotonin syndrome, and basically told me I had to choose which drug to stay on as it couldn't be both.
He searched through the system and told me he had had no communication from the private clinic regarding my adhd medication. He did know about diagnosis as he responded with an abrupt No to a request for shared-care. I emailed the private clinic to let them know about my GPS advice and I got an email back saying basically "yeh serotonin syndrome is a thing and you should be closely monitored. And we've attached a leaflet on symptoms to look out for". WTF?! Nobody ever mentioned this to me at the time even though I gave them a full medical and medication history. They know my GP has declined shared care and they see me every 2 months. I wouldn't call that close monitoring.
I would say I've probably had some mild SS symptoms when my meds have been increased. Vomiting, hand tremors, palpitations, anxiety. I didn't know what I was meant to be looking out for.
I pursued a private adhd diagnosis as it was becoming clear my symptoms were at an extent that I would not be kept on after the probation period in my then-new job. Once the Xaggatin kicked in my performance improved massively.
I really really don't want to give up the adhd medication as it has shown me what most people experience daily. I can focus, concentrate, my memory is better and I don't have as much anger inside. I still have some titrating to do but I feel more "together".
The thing that's worrying me about coming off Venlafaxine is the withdrawal symptoms
I have tried coming off it at various times over the years and have experienced everything from brain zaps, muscle pain, intense headaches, severe suicidal thoughts, sleeping deeply all day, dizziness, nausea, joint pain, severe irritability and paranoia leading to relationship issues. This is to name just some. It is clear that my symptoms of depression arise at times of stress in my life as opposed to a chemical imbalance (if that makes sense? Situational depression).
I'm scared
nobody in my real-life understands what I'm about to go through coming off the Venlafaxine. I also have a new partner since my last time trying to wean off (years ago) and I'm not looking forward to him seeing me after being unable to shower for days, and not really giving a shit about it either. (He is so supportive about everything in my life... I just don't think he knows what's coming!)
Also, I only get 10 days company sick pay then it's SSP (which doesn't even cover my monthly mortgage payment. I live alone). I'm feeling under a lot of pressure to continue working. If you have been through Venlafaxine withdrawals you'll know this is probably impossible 
I don't know what I'm expecting from this thread tbh. I just wanted to put my thoughts and fears in to words, and hear from others who can offer support with what's ahead. Sorry for the long rambly thread...unmanaged adhd 