I am a 53 year old female who has developed a gripping intermittent pain in the left side of my abdomen. It is worse on movement and when I breath deeply. I am constipated and having difficulty in passing wind. I also feel generally unwell and have a persistent headache. This has been going on for approx 2 days.
Hi and Welcome to Chat Doctor, Do you have stepladder type of temperature?  Do you have nausea, vomiting?  Please check blood tidal test.  It may be due to enteric fever.  If you don't have temperature you can rule out.  Do ultrasound and chest x-ray.  This may also occur in abdominal aneurysm, food poisoning, premenstrual syn Chat Doctor.  Detailed assessment is necessary with doctor.  Wish you speedy recoveryThank you