Definitely complain and also let CQC know. My poor mum almost died two weeks ago as paramedics and then drs were focused on her blood pressure and ECG; they didn't listen to her that the pain was in her abdomen.
She was transferred to another hospital, 40min journey on blue lights, she was in agony, then was scanned, that hospital decided it actually was her stomach, resulting in another long bumpy journey on blue lights back to original hospital and straight into theatre for emergency surgery.
Her dr told her if she hadn't spotted the problem - her intestines had wrapped around scar tissue and died - that mum would have died very soon.
Wound was not checked until 4 days after surgery, nurse who treated mum was horrified as it should have been changed daily, and found an infection, cellulitis. Dr prescribed antibiotics, it took 7 hrs for mum to get them, despite the dr assuring me she would receive them immediately. It took 3 phonecalls from me to hurry up the antibiotics, the nurses were rude, no empathy for my mum at all. Mum was also in a good deal of pain and the very little morphine they allowed did nothing for the constant pain.
After 10 days mum was discharged with her infection, despite telling the nurses that she lived alone and she had just come off her feeding tube, had diarhorrea and nausea.
I am now juggling a full time job and caring for her, infection is not getting better but her GP yesterday tripled her oromorph and gave her more antibiotics and last night she actually slept and pain better.
Sorry for long post, needed to get it off my chest! Wish you well, OP.