Lymph nodes 1cm and below are still normal size right? so if i feel 5 in my neck but there like 0.5-0.75 cm there ok? been there a year. never changed

Lymph nodes in kids: Yes. It is perfectly normal for children to have multiple lymph nodes up to 1.5-2 cm diameter from ages 1 to 21, usually in the neck on either side along a chain of lymph glands stretching from behind the ear all the way down to the clavicles. They are caused by the repeated (but normal) colds, sore throats, and other viral infections that children get. No need to worry.

Monitoring Centers: Lymphatic system absorbs/carries things too big to go into the arteries/veins like bacteria eaten by white cells/digested food. Lymph nodes "taste" the lymph everywhere for bad stuff like bacteria/viruses/cancers, etc. When it detects a problem, it alerts the immune system and your body reacts. They enlarge in response to the inflammation they create when they react. They shrink when all is well.