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

### input:
I woke up this morning around 1:30 to use the bathroom and after returning to bed, became restless and had trouble falling back to sleep. I got up before 6 this morning to get ready for work and had a mild headache, so took my thyroid medicine, showered and then took 2 regular Tylenol. I noticed that my right arm was aching since I got up and also had pain and discomfort in my back between my shoulder blades. I have been experiencing this arm pain and back pain all day. I have since taken more Tylenol. I also have Ulcerative Colitis and am taking Asacol daily, Rowasa enema at night, a blood pressure medicine (forgot the name) usually take around noon. I m also taking Remicade infusions. I ve had 2 treatments so far...my next one being July 10th. I guess I m wondering if this is a side effect of the Remicade, which I don t see that it would be, or something else. How serious could this be?

### output:

Hi, Medications currently have a lousy sense of direction and side effects from them have to occur everywhere not in one spot. Overall aches from immunological? Sure, one spot. Doubtful. Then, the larger question is what's the cause of the pain! Cannot say in your particular case, but generally, you start from what is there. The nerves run from the neck down the arm. Shoulder is not a perfect spot unless it is along the top. AND moving the neck usually triggers it. Joints give pain with moving the joint and this is quite likely in this case. Arm attachments are a bit complex. Then there are the muscles. These generally hurt if pressed. Hope I have answered your question. Let me know if I can assist you further. 