Cystitis and diarhoea

Was feeling completely better, so had sex yesterday morning. Washed before and after (well, ok, washed before bedtime, but could I really have got so dirty whilst asleep?!), drank a pint of cranberry juice and then a pint of water. Greased up before the act (olive oil). Took D-Mannose, cranberry tablet, and oil of oregano capsule. Felt fine all day - no pain of any sort, not even any chafing. Woke up this morning with cystitis and diarhoea.
Cystitis symptoms:

• Bladder feels a bit tender if I touch my belly


• Inside of twat burning a bit


• Localised pain in top wall of twat where I imagine my urethra to be


• Pain at the end of weeing, but not too severe - sends the shiver up my body, but haven't felt it in my teeth

Have drunk water and a cup of tea. Now drinking some homemade barley water with honey. It feels less painful than it did an hour ago. Have appointment to see doctor - actually to talk to this time - although am not very hopeful that she'll have any answers. The boy is ace.