thanks for writing us...
Upto age of 30 to 35 years and especially in females, there are T wave
inversions in V1 to V3 leads
called as Persistent Juvenile Pattern. It is benign not related to any cardiac illness.
You also mentioned that potassium level was less, that may also be cause for ST depression
, T inversion.
You dont worry every thing seems to be okay with you.
is due to gastritis
itself and sometimes may be muscular..