Should I revise the text for my gravestone?

Other than people who are planning suicides, most of us don't know how much time we have left.

When I started this blog five years ago, I did some research and calculating and estimated that I'd die in 2035, at the ripe old age of 89. (My father died at age 87. Mom made it to 92.)

The 89 number seemed realistic, and neither pessimistic nor greedy.

Now I wonder if I'll hang on that long.

I've been a Type-Two diabetic for about 25 years, but it's under control. I've had kidney stones, but they were blasted to smithereens and I peed them out. I don't smoke and seldom drink alcohol. I don't bungee jump, sky dive or engage in dangerous sex.

Like many Americans I eat too much. I assumed that I'd have a heart attack when I was in my 40s, then 50s -- but it didn't happen.

A few years ago I lost about 120 pounds. I got rid of the other person who was living under my skin and hanging onto my bones. I was able to buy jeans for $14 at Sam's, not $50 at the fat man's store. I felt good, looked good and some hot chicks flirted with me. Twenty pounds came back but I made ten go away. I want to lose the other ten, and maybe more.

Last week I was diagnosed with inadequate kidney function and atrial fibrillation (also known as coronary arrhythmia and irregular heartbeat). Yesterday I found out that my blood pressure is very low (80/60, compared to a normal 120/80).

My wife Marilyn inherited bad heart genes from both parents. She's had a triple bypass and two stents installed. We knew she had a "bum ticker" and she ate carefully, got lots of exercise and good medical care. She's lived longer than both parents and a brother.

Marilyn's been in the hospital for a week because of a bad concussion. I nearly blacked out when I visited her last Friday, and I was admitted to the hospital. My room was on the floor below hers. Not very intimate.

My heart and kidney problems were discovered while I was visiting her. They had not been previously diagnosed, but probably were incipient and worsened by my not eating or sleeping properly while Marilyn was in the hospital, plus stress.

I have some new drugs to take with various good and not-so-good effects. Some drugs may be the wrong drugs.

• I had a small scab on one arm from a dog scratch. Suddenly it erupted and blood started flowing. The leak is probably caused by my new blood thinner. 
• I was given a new drug for high blood pressure -- and three days later I was diagnosed with low blood pressure.

Human bodies are very confusing. Androids don't have to deal with this crap.