5 Scientific Reasons We Get Butterflies in the Stomach Waiting for Our Crush
4. Neurons along the brain-gut axis let the stomach know when you are losing your mind out about something
Neurons are transmitters and they are pretty good at transmitting what your brain is undergoing just thinking about meeting your crush. The longer the wait, the more you are torturing your poor stomach.
5. Butterflies and the fight-or-flight response may have served as an evolutionary function.
Early human beings may have felt this too, not necessarily because of their romantic feelings, but as a sign to alert them to danger. It could also have been caused by an anticipated difference in their regular lifestyle.
You are not going to meet and wait for your crush every day or many times a day. If you get that tingly feeling even when you are not doing anything, you should probably get yourself checked by a physician as it could be a symptom of something more serious.