Over The Past 2 Weeks I Felt Intense Stomach And

Question : Over the past 2 weeks I felt intense stomach and gut pain about an hour after eating. A week in I started to also get nausea followed by vomiting. I spoke to a GP over the phone who said it was a stomach bug and to take ranitidine for pain. Later that day I developed itching all over, but specially on my hands and feet. My face swelled up and is dry and sore all around my eyes, forehead, lips and nose. Like an allergic reaction, but I have no known allergies (I’m 31, M). My stools were pale and smelly for a few days but then returned to normal.
Now they come Out half and half. Some white and some brown. My face is still a catastrophe and is dry, red, sore, flakey and hideous. I’m using dermol cream on it regularly to try and help, as well as taking an anti histamine pill daily. I’ve removed all my bedding and washed all my clothes in non-bio for sensitive skin. I have a dog and have been extra careful to keep him out of my room, as well as
Vacuum and clean thoroughly (never had pet allergy before and had lots of dogs and cats in my life). My urine is also very dark. It isn’t brown but it’s a very very XXXXXXX yellow. I’ve never seen it so dark. I’m drinking plenty of water and it’s still dark. I am a pre-diabetic and my hba1c is around the 43 mark (it elevates). I’m going for blood tests tomorrow but I’m in a great amount of discomfort and despite my efforts to try and pinpoint if it is an incidental allergic reaction (have cut out dairy, I don’t eat gluten anyway as part of my low carb diet for pre diabetes and I’m certain it isn’t suddenly my dog) it isn’t improving. Any ideas what it may be or what I should ask my gp if I go back to see them? (I saw one a few days after the phone consultation who advised anti histamine and read up on paleo). I can’t go on with my face looking like a sore flakey burns victim, so should I ask for a referral to a dermatologist? I also didn’t provide a urine sample, which I found odd.

Thank you doctor for replying. I am currently taking antihistamines (once per day) and I’m keeping to a bland diet carb free. My doctor said it may be dairy related, but I’m going to request an allergen test too.

I have a question about my face; how long would you expect to see the reaction before it passes? I was planning to return to my doctor within a week if it was still sore and dry.

I will also ask about the steroid shot if it hasn’t calmed by then. It’s been days already and it’s still very sore despite the medicine I am taking.

Thank you once again for your reply.