HI,
    I understand your concern.
    Your symptoms seem to be from involvement of ear- nose-throat due to their anatomical connection.
    I feel as you have correctly thought , it was 
cold  allergic in nature to start with..  with., extended to 
sinuses /got infected ( puffiness of eyes ). & infeciton spread to throat causing tonsiillar infection ( pain while swallowing & pain in ear ).    
Allergy effects in chest cause the pain in upper part of breast ( eosinophiliia )
       In such patient usually anti cold drug over the counter should be taken  three times a day after food ,with hot saline gargles & steam inhalation .
     If there is no relief, you should consult an ENT doctor for examination, blood work, 
X ray chest( as per need ) & start with specific druga advised.
   Thanks.