Normally my N9 runs pretty great. Every once and a while an app will freeze and it asks me to close the app or not.

Very rarely does the whole phone lock up (maybe a few times in the years I have had it).

BUT lately it seems to freezes up where nothing responds and if you push the screen lock button nothing happens and I have to restart it.

Anyone else notice this happening more lately?

I havent installed any apps or changed my usage in a long time.

I tried clearing out some memory and erasing stuff like SMS/MMS and web private data.

I looked at my resource monitor and at idle everything looks to be about 0