I have been suffering from poor health for a while, burning in hands and feet , mental fog , poor memory, tiredness, sleep disruption and out of the blue most recently depression

I was referred by my GP to a Neurologist who checked my reflexes etc and all were fine. He also booked me in for a MRI. The MRI showed some white matter lesions . and a cyst which although not ideal were not likely to be giving me the symptoms that I have been getting.

Then ... and this is the bit I could do with some help on , Thursday this week I started coming out in spots all over and a rash on chest and neck / face with purple blotches on my hands. My wife was amazed with the speed and we put it down to an allergic reaction. I popped a anti-histamine and went to bed, next day the itchiness and some redness was still there, so i took another anti-histamine. Then i noticed that all my above symptoms had pretty much vanished , i felt fine (better than fine) , my thinking was normal and i was just me again .... what a relief.

Question is --- what do i do now ! I am loathe to stop taking the anti-histamines (acrivastine) in case they are causing my symptoms to have gone away. So the question to this forum is , have any of you experienced anything like this before, I would like to gather as many opinions or thoughts before I see my neurologist again. I also slightly worried that he might think I am a bit of a crackpot (i am not !) but it all sounds a bit good to be true !

Anyway end of my long post ! , any thoughts , suggestions more than welcome

Thanks

7Zark7