I cough up clear mucus with what looks like balls these range in size and colour what could this be and what should i do?

Probably a cold: Maybe an allergy. Allergy don't cause fevers or aches and pains. You might have swollen lymph nodes ("glands") in the neck with a cold. Allergies to outdoor environmental things like pollens are usually seasonal. Indoor things (dust) are all year round. Antihistamines are helpful as symptom reducers for allergies and are available OTC. Best for colds chicken soup.