### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
Age: 43 Female Heart murmur (innocent). One kidney (donor - 11 years ago). I often have back pain (lower) from lifting special needs son. In the last few months I ve had pain between the shoulder blades. One morning, very early (maybe 3 am), it felt like my heart was going to jump out of my chest with very strong flutter. Later that morning I had a squeezing sensation around my ribs that happened over about 30 seconds and lasted an hour before it slowly went away. Remained a bit sore for a couple of days. I wasn t doing anything other than standing at the time. Another time, I was washing my hair in the sink when it felt like I pulled a muscle between my shoulder blades. Slow, gradual pain - lasted for days and it was uncomfortable to take even a slightly deep breath. I have had on and off discomfort between my shoulder blades since. I do have a high stress life with a chronically ill son, and I have trouble sleeping more than 5 hours at night due to back pain and general anxiety. My worry is the pain between my shoulder blades. Is it common to pull muscles there? I hear so much about different symptoms of a heart attack for women. I do get extremely tired by mid day, could doze off just sitting on the couch (I have, actually). But I contribute this to lack of sleep. I ve had my blood pressure checked more than once over the past year. First time it was borderline hypertension, the second time it was something like 110/72. This has been the pattern for me. Higher blood pressure one day, far better a few months later. No obvious reason why.

### output:

distressful life is obvious from your post here and inevitable with sick son. I would suggest trying make up sleep in day hours when son is sleeping and scheduling your domestic chores accordingly. With stress and tension, Back pain, BP fluctuations are possible. Take mild pain meds like alive and apply pain/muscle relaxant gels locally after hot fomentation and sleep on soft but firm mattress to keep shoulder and spine straight. Consult a doctor for mild tranquilizers, muscle relaxant tabs and multivitamins best wishes