Karen .....
Understandably, we all worry about regrowth. An MRI is the only positive way to determine any regrowth. Keep in mind that regrowth is a rare occurrence. If you had translab (the best view for surgeons), it would be even more rare to have regrowth.
That being said ..... in my case, my very first MRI post first surgery (retrosigmoid/suboccipital) showed an "area of enhancement" that was being watched to determine if scar tissue, then residual tumor, then determined to be regrowth when it began growing. I had no additional symptoms, although the pre second surgery (translab) audiogram showed reduced speech discrimination, which had been 100% after the first surgery ..... but I had not noticed it.
What do you mean by "that side feels different?" Do you mean a recent change? If so, you should contact your doctor and tell him/her. Your doctor can make the call whether to do another MRI now or not.
Best thoughts.
Clarice