Heavy chested/warm feeling around heart, cramping in hand, sore legs, sore neck, neck tightness? aniexty? doc give tabs for aniexty? 2nd opionin?

Aches: Recommend workup by the pcp to rule out other possibilities such as infection or fibromyalgia. Wish u well.

Heartache: The constellation of symptoms described does sound like anxiety. Heart issues per se in a 22 year old are uncommon unless you've had a history of heart problems since childhood. Also, more info is needed to help you arrive to a definitive diagnosis. Based on the very limited data provided, all we can do is guess.