It is not necessarily heart issues or gas may be due to muscle pain. It can be . consult doctor. Just go for annual check up. Do either tmt if normal go for x ray. Have lighter food like soup, khichdi, kadhi, no fried foods. Take little of walk . avoid fermented foods for sometimes. No gaseous foods also. Avoid eating out. Walk little bit. Have lot of water. Take lemon water or coconut water. Don t eat breads. Don t take nonveg. Take some curds or buttermilk. Avoid fats.can take cold milk. It will relax u.don t stress ur self. Do little bit of meditation.