Hi Veronica welcome to our Support Forums. I am so sorry you're having such a bad experience, which understandably is making you feel so low. IIH can be triggered by underlying conditions such as systemic ones, weight, hormones and some medicines. Some of our members have it because of other conditions. Did you have any symptoms pre surgeries? It will help if you keep a diary to log symptoms etc, it will help not only you but your doctor, by giving a full and accurate account with a timeline. IIH Information booklets and Factsheets.
Most doctors will note you're overweight and straightaway state that as the cause, suggesting at least a 5% weight loss can help with remission. That's only true if weight was the trigger. If you're losing weight and in significant amounts, then weight isn't likely to be the cause. If you want to stop taking the Hydrocodone to see if it makes a difference, do so with your doctors help. Stopping medication should always be done with your doctors advice.
Try using a cold cloth on your forehead, eyes and the back of your neck. It really does help to soothe pain. Also familiarize yourself with our A-Z of headaches commonly experienced with IIH Factsheet.
If it's possible, try to pinpoint when symptoms started, and when you started on the Hydracodone. It could also cause rebound headaches, so try and rule that out too. It's going to take time to create a history of this journey, but hopefully it could lead to you and your doctor finding a trigger.
As to your colleagues, you could provide them with information. If they have the information available to them, hopefully it will help them to understand that your symptoms are out of your control, because it's a neurological disease.