I understood your concern  and noted the problem as well .I need to ask few more details to make a diagnosis and start treatment and advice which suits you. Pl consult me on Practo , so that I can help you better.book a time slot as per your convenience for consultation.

If you have so many problems after Covid infection (and that too when you needed steroids and oxygen support) , I suppose it will be better if you visit a General Physician in your area for a full physical examination. Some findings in the chest can be seen only by a Doctor and not by the patient. I suggest it will be better if you consult with a General Physician in your area. That will do lot of good to you.

Kindly discuss for your concern

Don't worry you won the fight man that is more important. Ya steroids high dose leads to diabetes but that was the only way to save your life. Can be because of some vitamin deficiency like vit d  and if  vit d is less then it leads to calcium deficiency If you are taking metformin for your diabetes then it may lead to vit b12 deficiency so you will need to take supplements. It will get better but will take a long time. So never lose hope ok.

Can help you with the next course of action and treatment plan. Would like to discuss in details and provide apt solution. Kindly consult.