MY iphone glitches because I download appcake with cyndia?

MY phone glitches a lot! When I downloaded appcake from cyndai I had this weird thing that it shut off and and that apple appeared and disappeared over and over again? Even now? Can someone help me?

What happened was you downloaded too many tweeks and you are in a boot loop. Plug your iPhone into your computer and put it in dfu mode. If you don't know what that is go on YouTube. When your device is in recovery mode you will then be able to get out of that situation. BUT YOU WILL LOSE THE JAILBREAK AND BE ON IOS 8

I mean cyndia

It has nothing to do with AppCake, it's you installed too many cydia tweaks