Hello and welcome,
It is good to hear that you are experiencing some subtle changes with acid reflux.
It is not common to experience pimples when you get to deeper issues, however, it is not unusual for pain to move, that's what Gary calls 'Chasing the pain', when symptoms show up in a different form as you deal with different aspects.
If these breakouts are showing since you do EFT, it is possible that they are related to the issues you are dealing with. On a symbolic level, acid reflux could represent a difficulty to accept certain things, in a background of worry and anxiety, Th skin breakouts could show you that the issues have moved but are still seeking acceptance.
How do you feel about the pimples? where are they on your body? what do they remind you of? connect with your felt sense and listen. Then tap.
Then again, it could be a sign of detox...something coming out. Persevere!
Hope this helps,
Best wishes,