pain in the left side of the chest could be angina pectoris a vascular issue of the heart vessels which should not be ignored because the coronary arteries are end arteries with limited alternative blood flow, so leads to tissue damage a warning for heart attack.

@Dr. Fernando Morales ☝️

Pills rarely, if ever, attack the root of the problem. Fortunately, you can never go wrong with lifestyle changes, especially while the docs are looking for a diagnosis. I don't know the full details, but I agree with one of the comments here about angina pectoris, it's one of the things I'd try to rule out. Independent of the diagnosis, I'd recommend transitioning as close as possible to a carnivore/ketovore diet + adequate sunlight exposure (especially during the first hour or two after sunrise) + avoiding toxic blue light from screens and LED/fluorescent light bulbs once the sun goes down + grounding in nature. Avoid wearing sunscreen or utilizing sunglasses. Obviously this isn't getting deep into the details and can seem weird if your unfamiliar with decentralized medicine,, but you basically want to increase mitochondrial and, therefore, general health with these interventions. Another note on sun exposure: UVA helps produce nitric oxide within your body, which is a potent vasodilator. I recommend you download the MyCircadian app to know the best moments of the day to get it. Make sure you uncover as much skin as you can. Cheers and my best wishes!