There is no diagnosis called monotonous headache in the IHC. There are however Chronic types of headache, as well as a diagnosis called New Daily Persistent Headache. Headache itself is not a diagnosis. There are many different types of headache, so seeing a doctor or headache specialist is very important for proper diagnosis and treatment.
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monotonous
Monotonous is an adjective.
The stem of the word monotonous is monotony.
The singer had an monotonous voice, the song was boring
Sally work and a cook show and became monotonous and she had fun cooking
Her voice was very monotonous, and I soon became bored listening to her talk.
Monotonous is an adjective. Only verbs have tenses.
Anything longer than the first round just becomes monotonous.
Answering all these simple questions is getting a bit monotonous
The noun form of the adjective 'monotonous' is monotonousness.A related noun form is monotony.
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