I am having a chemical stress test on Tuesday morning and an MRI done on Wednesday morning . My blood pressure got high for the first time this summer , as in 152/99 . I was put on a water pill and it has n't helped much yet . I had a chemical stress test 18 months ago and it is a horrible feeling . The MRI is being done so that hopefully my hernia will show up .

Q with options: Give answer the following question using evidence from the above passage: Why is the narrator being subjected to so many tests ?
Pick your answer from:
- They have a chemical imbalance .
- They have a water deficiency .
- They have high blood pressure .
- None of the above choices .
They have high blood pressure .