Zings and occasional chest pain.

I have had COVID in the last week of April and the symptoms+weakness lasted throughout the first week of may. After that I felt completely fine and got back to my work out routine slowly but after my workout two days ago,I've been feeling weird chest pains. Oximeter is showing 96-97 spO2, and pulse is in the range of 72-86. Along with that I've been feeling a little buzz in my brain with occasional sensations of slight nervousness in my body. Everything else is fine with me including my digestion and I've been checking signs of black fungus but I see none. My eyes have been red for the last three days and I consulted an opthalmologist who prescribed me with medicines of dry eyes. During my COVID treatment I was feeling heart burn and low pulse (56-65bpm) and I felt as if I would go unconscious if I laid down but my oxygen never dropped.