Actually cell can get big but they are smart enough to stay small and live off lots of small food, and there isn't enough food for them to live off of (if this is wrong i apologize)
They may be dehydrated, dehydration causes both of these symptoms
Trying to take less stress off buy not doing so much .
People littering and throwing rubbish on streets, to avoid it from happening place more bins in areas for people to throw their rubbish or address the situation to others.
