Rishi complains of severe stomach pain and believes that he has stomach cancer. he is taken to the hospital where the doctor prescribes some tests. rishi's reports are normal and he did not have any medical problem. however, he insists that he has stomach cancer. rishi is suffering from
a. social anxiety disorder
b. bipolar disorder
c. illness anxiety disorder
d. dissociative amnesia

 Rishi is suffering from illness anxiety disorder.

Explanation:

The illness anxiety disorder can be defined as the obsession with the idea of having a serious, but undiagnosed medical condition. It usually develops among adults. Having other mental health disorder can also lead to to this for example somatic symptom disorder, depression or a personality disorder. In this a person can switch doctors frequently. Medication and counselling can help in this.

70 % i think is the answer.

you aren't worthless, you are a one of a kind person who, deserves happiness like anyone else, you may not get it but everyone deserves happiness. i hope this .