yep, I think Thomas Antony hit it on the nail & your headaches etc are guilt by association, but not related...
AuD. CCC-A
27 F, M/o two, with three lumps, earache, sore throat, headache and occasional blurred vision, all on right side, scared, all developed over 3 yrs.
With swellings and lumps in the head and neck area, you have to visit your doctor, and if they don't respond well to treatment, they will refer you to ENT who is more familiar with the anatomy and illness in the area. Only he will be able to find out what they are, and what relation they may have with each other, and your earache and headache. The blurring of vision do not appear to be related to the lumps.
As such, if your swellings have subsided with antibiotics, first or second course, nothing to bother. All they may do is watch for change in size or appearance of swelling, and if they don't regress, intervene if required. The first one with a hole seems to be a 'sinus', most probably a pre-auricular sinus. No big deal. Occasionally sebacious cysts also may have a similar appearance; no big deal.
Hope this helps
Best rgds,
Thomas Antony