hello seems like you have developed a urinary tract infection called cystitis..usually need a course of antibiotics for this...you also need to find out why you are so constipated.??are you on any medication that has this as side affect..
the urinary infection until you see a doctor is settled with cranberry juice..
for my constipation i take 5mg dulculax which gently stimulates the bowel back to natural rythmn.
hope this helps you..

Ah thank you so much. You're a huge help!