This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

n. The state or quality of being excessively sensitive

"Saturday was full-on "this is going to be a two-week flu", complete with chills and fever, skin oversensitivity, mild delirium, et cetera."

hypersensitivity   

activity    aggressivity    connectivity    expressivity    hyperactivity