Dilated Pupils, Pressure In Head Between Flushes

I am on my 22nd liver flush, and have started to experience some intense symptoms that have me a little worried. After my last flush, I felt amazing, but I made the mistake of drinking 4 large de-caf coffees which I beleive was the day after the flush. When I got home, the pressure in my head was so intense, I thought it was going to explode. The pressure on the back of my eyes made them dilate and my whole body had a feeling of anxiety throughout it. I quickly hydrated myself and started taking a lymphatic drainage supplement and went for a walk. It helped a little bit, but the same symptoms are still up but to a lesser degree. I also have to urinate very frequently.

I have done another flush since then, and felt amazing for about a day after the flush, but the same symptoms have come back .. pressure in the head, dilated pupils, troubles staying asleep, nightmares etc ..

Has anyone experienced this before or know if it could be something I'm overlooking?

Could the coffee of triggered an acid overload?

Thanks everyone,

Warren