Uncomfortable in Chest. The remedy.

I was covid positive on 25.09.2021. Took Fabiflu and other antibiotics for 5 days recovered and was tested Negative on 09.04.2021. I regained my taste, smell and feel completely fine till last week. This week I started having bowel movement frequently i.e. 3 times a day. Mostly after eating or drinking. No loose motions it's like pellets but not more than 3 time a day. Consulted Paracto and got better now after using the medicines. Now since two days I am feeling little heavy in chest but no pain or no breathing problems. Taking steam twice a day. Using multivitamin tablets once a day. Pulse oximeter is showing 98 when checked after every 4 hours. I feel like some light weight on chest. Please suggest the remedy.