It sounds like you had a traumatic time in your very early (womb) life. Cocaine would definitely be felt as baby and it may have set your stress / stimulating wiring on high from the beginning. There is a discipline called "Prenatal & Perinatal Psychology" that offers insights to help you understand & resolve this. I think it may be significantly connected to your current health problems. It teaches you "conscious self-parenting" skills to replace the neglegent parenting. You will have to re-wire your brain to heal, pills alone may not be enough.
Your dizzy / vertigo triggered by exercise MIGHT be related to low blood pressure. It's a common symptom of Adrenal Fatigue Syndrome. But hallmark symptom of AFS is inability to handle stress (compared to before) and a dysregulated, over or underactive stress response. AFS often comes with salt craving, weight gain or loss, and severe insomnia issues. AFS is usually caused or intensified by periods of accute stress. the most effective treatments are considered to be Vitamin C, B5 and adaptogenic herbs. Vest resource on the web is Dr. Lam's site - absorb the info, ignore the marketing scaremongering.
You may also have a condition that is closer Chronic Fatigue Syndrome. This syndrome is marked by post exertinal malaise (PEM) - including brain fog, fatigue and muscle pain, insomnia - after physical exertion or emotional stress. Onset of Chronic Fatigue Syndrome is often attributed to viruses, infections and toxun as well as chronic stress. the most effective treatments are considered to be d-ribose, mitochondrial supplements (l-carnitine, Q10, phosphadatiyl choline), and methylation supplements like B12 and methylfolate. The best resource on the web for CFs is the Phoenix Rising forum.
So yes.. what you are describing makes a lot of sense... it sounds like you have issues somewhere on the AFS or Chronic-Fatigue-Syndrome spectrum.
You will probably need do doa lot of mental rewiring, diet work and last,sly, supplementn support to get over it and be able to live life they way you want to.