Regarding ecg. Vanished within a second.

Hello doctor. today I went to hospital with c/o dizziness, suddenly some weried sensation from stomach till throat then it's vanished within a second.some cold flushes along with that.so I rushed to hospital nurse check bp 150/100.saturation in left hand 84.. pulse was70/ mt.immediately duty doctor made me scared saying u got some blood flow  low in left side hand ,so nurse check in right side it was shown 97 to 98 saturation.pulse was 86.. usually always that pulse oximeter battery always low in that hospital..so doctor said to do ecg .I did. Report I attached.dictor said it's normal.but in print report in ecg shows long left axis deviation.that means  doc said to me u have blood low is less compare to left and right.last Jan I did echo it's normal.i am breast feeding mother.i am having so much of fear after my daughter was born.taken multiple ecg.35.echo and tmt.all normal..again doc which I was consulted he made more panic today.kindly look into my report.anything can be done.TIA