How to sign: pain in the head caused by dilation of cerebral arteries or muscle contractions or a reaction to drugs
Similiar / Same: head ache, cephalalgia
Within this category: histamine headache, migraine, sick headache, sinus headache, tension headache
How to sign: something or someone that causes anxiety; a source of unhappiness
"New York traffic is a constant concern"; "it's a major worry";
Similiar / Same: worry, vexation, concern
Categories: negative stimulus