I remember watching some interview with Ryan clarke of the Pittsburgh Steelers talking about how he trains for football while having sickle cell anemia. The things that stuck out was that he drinks a whole lotta water to stay hydrated while lifting and running and also religiously checking his heart rate to make sure he stays in his comfort zone (think he said it was like 140 or something)
Somehow someway he managed to stay in NFL for 13 seasons while training/lifting like a pro athlete (which meant he also had to get medically cleared every year to play in the first place). Unfortunately he had to get his spleen removed after a game in denver because the oxygen is so sparse at that altitude (which makes sense becuase sickle cell affected hemoglobin doesn't bind to ozygen as well).
@Cuzo I hope you don't live in high altitude region because that only makes things harder for you.
Back on topic I wouldn't rely on extreme fasting because doing it too often fukks with your brain's chemistry. Being that your brain consumes more glucose/energy than other organ in the body it's gonna suffer the most.
@Cuzo go ahead and ask your doctor if it's a good idea. I bet all my coli cash she/he would be
at the whole idea.
Personally if I were you I would find out what your BMR is and eat 200 to 500 calories below that. Then I would aid that with an hour long walk everyday. Investing in an accurate heart rate monitor will be absolutely crucial for your health (I'd recommend staying under 120 bpm )
Good luck breh.