Diagnosis of ME alongside other long term chronic illness. Long term difficulties with breathing, chest can feel painful as if there is a weight on it, get very breathless with heart pounding with activity also same doing no activity even if just lying down it comes on out of nowhere the same symptoms. I feel I cannot get a full breath of air in me. Get very dizzy if moving upwards from bending down to standing sometimes I black out briefly but blacked out and fell a few days ago when moving from crouching to standing. Gp referred me to cardiology query pots as he said I had orthostatic intolerance (bp 102/78 hr 102 standing, bp 114/84 hr 89 sitting -sorry I don’t know what these figures mean) Finally saw cardiologist, felt he really minimised what I was saying and was v dismissive of me in attitude. Said I have low blood pressure so this is causing it, not that he took my blood pressure. He did an echocardiogram that said mild sinus tachycardia and discharged me. Feel still none the wiser, another bad day with symptoms today can’t stand for long and feel I’ve got a concrete block on my chest. Been reading up said it is a tilt test to diagnose pots which I wasn’t offered, not sure to pursue private which is v expensive, or accept it’s prob another symptom of ME. Looking for advice. Thankyou for reading, sorry for the long message, this feels like as short as I could get it with everything that’s happened. Grateful for any advice