If a medication or a medical condition is the cause of constipation, eliminating the offending medication or treating the underlying medical condition may relieve the constipation. However, certain conditions require the use of a medication despite its side effects.
Your heartbeat can be either tachycardic or bradycardic during a heart attack, so no i don't believe you had have a normal pulse rate at the time of a heart attack, normal being around 60-70 beats per minute for an adult. Heart rate does decrease though with age but that doesn't necessarily indicate anything is amiss.
3. Myth: If my pulse is fast, it always means I'm stressed out. Stress is just one thing that can raise your pulse. Your heart rate may also speed up when you exercise, get excited, or feel anxious or sad. When you stand up, your pulse may go up for 15 to 20 seconds before it goes back to normal. Even the weather, like high temperatures or humidity, can raise it.