I Got Little Sleep Last Night, Ran A Number Of

I got little sleep last night, ran a number of errands (including getting an MRI with contrast) right off the bat this morning, didn't have breakfast. When I got home at lunch time, I resorted to ordering pizza & wings delivered to the house, and I stuffed myself, eating about 1/2 of the medium-sized pizza & 4 wings, plus had 2 cups of Earl Grey tea. Now it's about an hour later, and I felt short of breath with heart racing. Checked my bp, and it is 142/100. Should I chalk it up to a consequence of circumstances and not worry at this immediate time? Can I go lie down for a nap? Or is this some sort of life-threatening moment?