My mom did if for a few months, years ago. She stopped because it was ramping up her anxiety. Make sure to read about the dangers just in case you see any of those symptoms. She had sent me some way back when but told me to wait until she's finished her experiment. I'm an even more anxious person than she is - I can't even do coffee but once in a while - so she told me not to bother with it.
I drink a lot of coffee ... the methelene blue didn't make me feel any different, in fact I washed it down with coffee and had a couple more cups before I saw the "blueing effect".
Yes, if coffee makes you jittery I can agree with your mom's guidance. I have a high caffeine tolerance, didn't even notice the methelene blue until I pee.
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