food grade hydrogen peroxide external and internal use

I believe I used too much 35% hydrogen peroxide in my bath water. I became extremely "flushed" after only moments of entering the tub. I also used it internally having similar reactions. Is it possible to have burn-like symptoms throughout my whole body that gradually get worse as the years go by? If so, is there anything I can do about this? I've been to many doctors in the past 16 years about these "symptoms", but they have no answer for me. I just wonder if the 35% food grade hydrogen peroxide could be where these "symptoms" originated from? Thank You.