Are Fibromyalgia, Obesity, Pain In The Left Arm And Chest Indicative Of A Heart-attack?

Question : I am 65, have Type II Diabetes, asthma, sleep apnea, fibromyalgia, osteoarthritis, & some kind of inflammatory arthritis. (Dr. thinks it's psoriatic, but I am not convinced & my PCP could not find any reference to psoriasis in my dermatology records). I also am obese at 5'2 1/2", weight at 195. I am walking a mile a day & trying to work up to 2 miles, but gradually. I had total hip replacement in May 30 2017, but have another condition, probably related to the side-effects of needing that surgery. (My pelvic wall is twisted, is the way I recall it being described & I am doing PT to strengthen muscles for that.)

The symptoms I am having are not like anything I have ever had. My forearms feel extremely achy--as if I had just run the 100 yard dash & all my oxygen is depleted. I have been having chronic high inflammation for a year, plus a high wbc since 2011 with periodic low grade fever (just barely under 100F). Along with this sensation of depleted oxygen in my arms, my jaws hurt at the same time. I have pain across my shoulders pain off and on and sometimes just pain in my left shoulder & arm (but I have arthritis in that shoulder). My PCP says my heart 'sounds fine', though I do have HBP--controlled by Lisinopril, usually very well. At the same time frame that I have had these symptoms (off and on the last 4-5 days, but periodically over about 2 months), I have also had sudden headaches which are bad at the same time. (Background: I've had headaches all my life: brain tumor at age 3--pseudo glioma; AVM ft. anterior cerebellum with cephalamalacia (sp.?) which developed over time as the AVM surgery was XXXXXXX 6 1992; & numerous MRIs have shown that I have had migraine headaches (which I knew as they were only on 1 side & terrible--icepack headaches, I called them!--though I did not have auras. I was very sensitive to sound & preferred a totally dark, silent bedroom.) In addition, my sed rate has been in the range of 82-85 for at least a year. Methotrexate has not brought it down, so far. I am concerned whether the muscle aches, jaw pain, sense of arms' blood cells being low in oxygen (as if having just completed intense exercise), & shoulder & general arm pain are indicative of an impending heart attack. Please advise. I have an appt. to see my Rheumatologist next week and to be tested for allergies a day later by my allergist. As to the latter, for the last 4 years or so, as soon as I finish eating, I am 'flooded' with phlegm & end up coughing up phlegm (& sometimes throwing up, so much that I dread eating), and I have had more asthma attacks. I have had repeated pneumonia over the last 4-5 years, with it occurring once or twice a year. I also had Rocky Mountain Spotted fever. I know this is a lot of info, but does it sound as if I need to get my heart checked?