Not necessarily. If you have a family physician discuss in an office visit as soon as possible. Life after 40 is not like life before 40 and risks of all types of diseases increase significantly.
Think of all the men (and women) that drop dead of heart attacks in their 40's while thinking they are in good health.
Do not ignore this
Hi JCH MD,
Thanks for info, I don't have blood pressure or any heart issues as I know of and I have always been healthy. If it were any of the items that you listed "valvular heart disease, carotid disease, rhythm disturbance" wouldn't I have those issues outside of exercise also?
Dan, it is extremely important you work with an neurologist or cardiologist (probably both) to make sure this is not an exercise related TIA (transient ischemic attack) which can be due to valvular heart disease, carotid disease, rhythm disturbance. You should do this immediately and not work out hard until you have a complete work up.
You also need to see an ophthalmologist Eye MD. You can find one near you in USA at www.geteyesmart.org At age 44 your reading difficulty could be accounted for by middle age eyes (presbyopia) and it is likely you need bifocals or reading glasses. However presbyopia would not cause the prism effects.
The absolute best thing this could be which can only be diagnosed after a complete medical, neurological and cardiac work up is exercise related ophthalmic migraine.
This is extraordinarily important especially if you have high blood pressure, diabetes, smoke, are over-weight or have a family history of heart or neurological disease. You're 44 and you are not bullet-proof anymore. If you have a family MD immediately call and have him/her refer you to a neurologist or cardiologist to begin what will be a complex work up.
Let us know how this turns out.