Synonyms for Achy:

adj.

•painful (adjective)
nagging, afflictive, aching, smarting.

n.

angry, chronic, pain, afflictive, chapped, acute, burning, crippling, smarting, agonizing, nagging, sore, hurtful, agonising, bad. •achy (noun)
painful, aching.

Other synonyms:

agonising, angry, afflictive, agonizing, crippling, smarting, chapped, nagging. hurtful, burning, acute, sore. bad. •Other relevant words:
afflictive, nagging, angry, sore, smarting, burning, aching, hurtful, agonizing.