Janelle, I get them too. Have from the beginning, almost 4 years ago.
It used to be only when I yawned. Now, every single morning, when waking up, my leg will stretch straight out. Like someone trying to pull it from the hip socket. My hand spasms, too. It alternates between clenching into a tight fist, and spreading wide open. I have to keep those fingernails cut super short as they dig into my palms. THAT hurts, other than that the spasms are just uncomfortable.
When I was in the hospital, they put me on baclofen. But it only has a 3 hour window and since my spasms were first thing in the morning, I would have had to be wakened at 5AM to take it. It did nothing for me, so I went off them.
I just bear with it. Maybe someday they'll go away.
By the way, I tried lifting my foot up and swinging my leg, and got horrible hip pain, so I don't do that anymore. I always wear my AFO, except at night. If I have to get up to the bathroom, I slip my sock on so it will glide across the floor easily.