Do the senses change after 30? i'm noticing that my senses have become dull or less sharp as time goes by especially how i taste and smell food. flavors aren't as intense as they use to be should i be concerned?

This is not possible to properly answer on an internet forum. You need a good in personl examination. This can be related to age ofr a condition

It is not feasible to provide a meaningful opinion without additional history, physical examination and may be some tests. 30 years of age is a bit too soon to be losing your sensory perception. It may be due to hypothyroidism or a nutritional deficiency. It would be prudent to see a doctor. Wish you good health!