I received my private pilot certificate 3 years ago, got my IFR the next year, and was going for my commercial when I had started going through a rough spot. I stopped flying, saw a psychiatrist, and was diagnosed with an "adjustment disorder". I was on medication for about half a year and then went off of it and since have been stable. I have a letter from my doctor saying that I've been off the medication for more than 90 days (it's been longer now but I think 90 is the requirement) and have been stable, etc. The problem is that during my rough patch before I started seeing a psychiatrist I had a problem where I was taking benadryl excessively and I ended up in the hospital because of it. Everything has been fine for over a year now and I went and applied for a second class medical just to continue my commercial. I don't intend to make a career out of flying (I'm an Engineer) but I just wanted to keep following through the various certifications as a learning exercise... so in hindsight I probably should have just applied for a 3rd class. At any rate, I got a request from the FAA for additional information in the form of a "HIMS/Psychiatrist Evaluation" and I'm not quite sure what to do. They referred me to a link on the FAA website with a list of HIMS sponsors. I contacted a doctor and set up an appointment but the day before the doctor called both me and the FAA and then told me that the FAA still thought I was on medication so to have another letter sent saying that I wasn't... so I did. Then I got another letter from the FAA saying that they received my letter but that I still had to go through the HIMS evaluation. So I called back up the doctor who said that he is a HIMS sponsor but that he couldn't do anything because he's not a HIMS Psychiatrist. I'm very confused because I just pulled a name off the list on the FAA website and I'm not sure what the distinction is. I would go through with whatever process I need to but it's so confusing I cant quite figure out what they want. Does anyone know exactly what I should do, or if trying for the third class would be simpler? And if so is there a way to modify my existing FAA application? Thanks for reading.