Your symptoms of heart pounding in head, hurting of eyeballs, headaches and seeing lines warrant following investigations;
1) Hormonal evaluation (these symptoms can be due to menopause)
2) A complete blood cell count, an autoimmune panel (ANA, sedimentation rate, rheumatoid factor),
3) MRI of the brain and internal auditory canals.
4) MR angiographic scanning; in this a dye is injected and looks at the blood vessels of the brain (as defects in them may be causative for this sound).
The causes can be; Anemia (decreased hemoglobin), Thyroid hormone imbalance, aberrant internal carotid artery , High jugular bulb, glomus lesions etc.
Please feel free for your follow up questions.
I would be happy to assist you further, if you need any more information.
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