Should I stop taking my meds?

I have been taking Fluoxetine for many years now, for what the doctors say is depression. I am currently waiting for my referral to be tested for ASD and I was wondering if I should come off the meds before? Fluoxetine helps me a lot with my anxiety and my patience with everybody around me. It takes twice as much to stress me out as it would usually, off the meds. I have tried stopping several times but every time I end up shouting at my kids and my husband feels like I shut him out even more than usual. I'm just thinking if it will have an impact on the test? Don't I need to be the real me to give them real answers?