IPhone 4 Vibrating in weird weak pulses?

All of a sudden my iphone vibrate starting being very weak and puttery, What should i do?

Nothing, its just a little motor in the phone that is deteriorating from use. No big deal unless you need your phone to vibrate for some reason, in which case apple may fix it but i would recommend just getting a new phone.

  • Why is the iPhone battery so weak? You have to charge it up all the time so why haven't they got a battery that can last at least a few days?
  • Why is the battery on my Iphone 5 weak and half of the screen has a blue tint? The battery doesn't even last a 1 day! And i'm not actively using it either. After holding the cell between my shoulder and ear for half an hour the right part of screen has a dark blue tint and it doesn't go away. WTF
  • Why do I feel sleepy and weak? And my temperature changed from cold to hot? When I was sleeping last night I switched on my AC next to my bed, and first I felt cold then hot… I was wearing long trousers but short sleeved shirt. I'm at school now and its difficult for me to walk I feel so weak! This morning I didn't feel like eating as well. I didn't finish all my breakfast just left a bit of cereal on my bowl. Now I don't feel so good, feeling dizzy a bit, I was using my iPhone before going to bed, got a bit of sore throat and cough too?!
  • My iPhone suddenly has weak Wi-Fi signal strength? This has been going on for about a week now and it happened suddenly. My 3GS suddenly has terrible Wi-Fi signal strength, meaning that if I'm in my room now, I can't get Wi-Fi while sitting on my bed. I have to be on the same floor basically as my router. Is there something I can do? Is there dust blocking something? Tips please?