Stress certainly can trigger a wide range of symptoms. WebMD says that stress can cause agitation, headaches, nausea, body pain, insomnia, depression, anxiety, and even ringing in the ears. Notably absent from the list: hearing loss and brain damage.
The fact that the Cubans would issue such an insultingly stupid report means that they aren’t taking America’s concerns seriously. That also means that the Trump Administration was completely justified in its decision to downsize the U.S. embassy in Cuba and to expel some Cuban diplomats. The rapprochement is off.
Cuba’s failure to cooperate is a shame. The U.S. isn’t even holding them responsible for the attack. If there really was a sonic weapon, the most likely culprit is Russia. Maybe the Cubans will care if one of their own is the next victim.