Hi thanks for your question.
It looks like your chest infection
was not treated completely and it has spread to your throat.Lymh nodes in neck are enlarged secondary to throat infection
that is throat infection of throat might have blocked the eustachian tubes(tubes connecting throat with ears) resuting in earache.Consult an ENT surgeon who may be able to examine you and may prescribe you antibiotics and decongestant for your pharyngitis.
Hope this answers your question.