My glabella is bulging at random points and it's 1 and a half months after botox. Is this normal?

Tonight I looked in the bathroom mirror and an enormous bulge was sticking out of my forehead - the muscles were literally bulging. I've never seen them like that. It has gone down but I still feel a slight bulge under the skin where before it felt flat at rest. This is naturally very worrying as it makes me look like a Star Trek character. I've had some strange sensation and numbness and have felt concern at times over the last week though until now I've been very pleased with the result. Thx.