Swollen parotid gland and ear clogged help please!!

Last year around March.. I noticed a knot on the back of my neck where the hairline starts.. I really didn’t pay it any mind until it didn’t go away.. so I looked on the internet and first thing I see is enlarged lymph nodes.. so I started to get scared wondering why this would happen.. so I started to panic, I made a doctors appointment the following week.. and during the week my parotid gland started to swell up on the right side .. so I started to feel that area and I also noticed a lil knot under earth and jaw bone where the swelling was at.. actually the knot is slightly under the swelling .. so I started to panic even more and think cancer!! So I went to doctor they said they think it just allergies and don’t worry unless it gets bigger.. so I went home and thought about and said we’ll what if it does get bigger so I made another appointment.. this time her ordered a cat scan ..   and this what it said 

US NECK SOFT TISSUE 

ADDITIONAL CLINICAL INFORMATION: Enlarged lymph nodes 

Technique: Multiple grayscale images were obtained of the neck 

COMPARISON: None available 

INTERPRETATION: 

Adjacent to the right parotid gland there is a 0.3 x 0.3 x 0.1 cm node. 

Just inferior to the parotid gland there is a 0.5 x 1.5 x 0.3 cm normal 

appearing lymph node. The right parotid gland measures 2.6 x 1.6 x 3.0 

cm. 

Tiny 0.3 x 0.6 cm lymph node is seen adjacent to the left parotid gland. 

Posterior to the parotid there is a 1.1 x 0.3 x 0.6 cm nodule and 

inferiorly there is a 0.8 x 0.5 x 1.2 cm node. The left parotid gland 

measures 4.1 x 1.8 x 3.0 cm. 

CONCLUSION: 

Small bilateral lymph nodes in the vicinity of the parotid gland. 

after all this it went away..until I seen someone on tv die from salvia cancer.. then everything started to kick back in.. I mean on and off the symptoms would come and go but now it’s back and I’m very scared I might have cancer can someone please help me and tell me what’s going on.. my ear feel clogged and irritated too.. also I had blood test and they didn’t see anything

Hello??? Can anyone she’d some light on this? I would love to hear more opinions! Has anyone dealt with this and does it sound like cancer? Please help I’m scared to death with no insurance right now 

??