Anxiety or Panic Attack?

Lately, I've been under quite a deal of stress.. I'm a mother of a 14 month old, step mother to a 2 year old.. My boyfriend works 80 miles away so is gone 14 hours a day.. And I have to watch his 2 year old every other week. On top of that we live with his parents, and it is VERY stressful! Lately since he started his job, I've been experiencing these strange bouts. I get tingly in my arms, legs, and back at randoms times. My chest feels heavy. My breathing feels labored. I feel shaky. Like I want to throw up. and sometimes I feel like I have pain in my chest. But I do not get what is triggering it. It is purely random. Is that some sort of anxiety? It only happens periodically throughout the day, and I noticed they are worse when I drink caffeine. Is this a panic or anxiety attack?.