limping, not wanting to walk after shots

So little Ms Zoe FINALLY went in for her shots today. She got rabies, and distemper. I am very happy to report this lady is heart murmur free now, yaye!!  I have been so worried about this ever since I got her and took her to vet, since early September when they told me she had a murmur. Anyway. We are home from the appointment, and she tried walking, and she very limpy, weak back lag and had a hard time walking. Should I worry? Or is it just sore from the shots? She also was shivering trembling a little bit. She's now sleeping soundly wrapped up in a blanket. I don't want to bother her.  I also set up her spay appointment. 2 weeks from now. She's about 16 weeks old now.

Thanks for any input!

It's possible she's sore. My cat is always sleepy for 24 hours after his vaccines. Our vet said that's normal. I would call your vet if your kitty is still limping when she wakes up.