Inability to sleep properly for weeks is a warning sign that someone needs the help of a mental health professional.
<u>Explanation:</u>
People suffer from stress all over the world which, if not seeked help professional for, may lead to anxiety and depression.
There are early signs that can indicate an individual's mental health being disturbed, one of which is the inability to sleep properly for weeks.
Sleep is a state of mind and body that must occur naturally. So if somebody is not able to sleep continuously for weeks, he/she needs to seek help from some mental health professional.
For the first one it would be a fragment because it isnt a complete sentence and the second one I think would be a complete sentence and the third would be a run-in sentence. All complete sentences would need a subject and a predicate! I hope this helped you! :)
