Check your rate like Artuad suggested. If your rate is closer to normal during waking hours it could be sleep apnea but you do want to investigate to find out if there is a simple solution to correct the issue and to make sure your heart is structurally fine. Hopefully it is something easy to correct like an adjustment of meds, BP meds can lower your heart rate, but if not the worst thing is likely the need for a pacemaker. Kind of bothersome to need one but if it helps you feel better it may be worth it but investigate first before any decisions are made. Best of luck. Keep us posted.
You can take your pulse now. Feel for it at wrist, you can count the number of beats in 15 seconds, multiply times 4 for beats per minute, or take for 20 seconds and multiply times 3, or for 30 seconds and multiply by 2.
If you take it at the neck, you may cause your heart rate to slow, that's a natural effect, that's why you should take it at the wrist.
What are you taking for your blood pressure?
A Heart rate below 60 Beats per minute is known as Bradycardia. Many people naturally have resting rates below 60, some into the upper 40s. Athletes, with conditioned hearts, more commonly would have these slower resting rates than non-athletes.
Some medications and drugs, including recreational drugs, can cause slow rhythms as well. I have included some links to articles about this disorder and listed some of the less serious causes. For someone with Bradycardia caused by an issue with the heart's natural pacemaker or electrical conduction system, a Pacemaker can be used to bring the heart up to a normal rhythm. It's too early to even consider this, please let us know what is determined to be the cause.
http://www.heart.org/HEARTORG/Conditions/Arrhythmia/AboutArrhythmia/Bradycardia-Slow-Heart-Rate_UCM_302016_Article.jsp
http://www.mayoclinic.org/diseases-conditions/bradycardia/basics/causes/con-20028373
High blood pressure (hypertension)
Heart disorder present at birth (congenital heart defect)
Infection of heart tissue (myocarditis)
Underactive thyroid gland (hypothyroidism)
Imbalance of mineral-related substances necessary for conducting electrical impulses (electrolytes)
Repeated disruption of breathing during sleep (obstructive sleep apnea)
Inflammatory disease, such as rheumatic fever or lupus
The buildup of iron in organs (hemochromatosis)
Medications, including some drugs for other heart rhythm disorders, high blood pressure and psychosis.
Idk my normal rate but I am also pein treated for high blood pressure.
Some pain in my chest but assumed it was maybe gas or indigestion
Yes but not morbidly and I stay pretty active, had problems with asthma when I was younger, lately shortnes of breath has been an issue more than normal but I also suffer and am currently being treated for imsomnia and anxiety attacks
Forgot to ask, what is your rate normally during the day when you are up and about? Are you overweight and/or have sleep apnea?
Are you having any worrisome symptoms? Shortness of breath, chest pain or passing out? If not and your heart is structurally fine then you may not need to worry too much at this point but I believe typically if the heart rate is too low a pacemaker may be used to keep a better rate. Not sure that it is a rush issue if you are not struggling to function but do get yourself fully checked out by a cardiologist.