Palpitations. Reports have come normal.

Hi...My issue is Palpitations...I first experienced this issue significantly on 1st March 2018. It lasted for around 15 minutes...Again it happened on April 26th.... Again lasted for 15 minutes.... In between I had some tense moments but I managed to control myself... I feel scared to go alone to a new place... I feel comfortable when people I love and trust are around me... Feel restless when car gets stuck in a traffic jam... Scared of Long journeys in train.... Too much negative thinking on health..... I was a little anxious person by nature...... But never did I feel like this...... Till three months back I used to drive car even for long drives with out any fear.... But now I am scared to drive.... No confidence..... Recent Changes.... I moved to Nagpur in November.... For two months  I took a Herbalife Energy Drink containing Caffeine all breakfast... I gave it up in February ending... The issue started on March 1st....ECG and other pathological reports have come normal....