Glad you are in some ways feeling better but I still feel that you need to be frank and honest when you return to the doctors. How you feel when you are at home and how you feel about even returning to work are to different things entirely. Work should not be putting any pressure on you and when you return to the doctor you must tell him exactly how you feel. The yoga and planning for the wedding plus the support you are gaining from family and friends is assisting you to recover. Recover so therefore you are still most likely in need of further time to be ready. The GP I should imagine will not hesitate in giving you further time to get well or recover. You will only have to look on here to see that a couple of weeks is nothing, others have gone back to soon and then had time off again, you are important. Health and well being. Think of the vibrant positive teacher at the end of it, so what if it's a few extra weeks.