Sister, As I understand it, adjustments you have to make due to your physical condition do not nullify your salat. Sick or disabled Muslims are allowed to modify their movements and postures during the prayer to accommodate their current physical disabilities. But you need to submit yourself to a complete physical exam and a blood work-up--i.e., glucose, thyroid, iron, etc--to determine the cause of your symptoms, in case you have a condition that needs to be treated with medication. Please post a follow-up of your progress.