Short answer - No! Although, not knowing all of your details I would say ask your dr., because depending on what you're doing, there could be arm balances involved, plank pose which uses your chest muscles, etc. and they usually say wait six weeks, which is where you might be when you go since you said a few weeks. It took me a few months to really get moving again, but it seems just from reading these boards that I was in the minority on that. It's great you're feeling so good.
Since recovering from my OHS's, I have done yoga several times a week for the past 2+ years and have recently started teaching a class myself. Yoga is a GREAT thing when you are recovering from OHS. Once you are fully healed, there are no limits, including being upside down. Of course, as with anything, listen to your body and don't push yourself and all that. Good luck and enjoy.