Ok this might be helpful:
1) Call a naturopath and ask if there are any naturopathic pharmacies in your area. Get the phone number.
2) Call the naturopathic pharmacy and ask about any potential for interactions between the herbs/etc. you want to try and your current prescriptions. Write down what they tell you.
3) Call your regular pharmacy where you get your meds from and ask the same thing - ask whether or not the herbs/etc. you want to take will have any interactions with your medications. Write down what you find out.
4) Call another pharmacy to get a second opinion - not all pharmacists know a whole lot about herb-drug interactions. Write this down too.
5) Get online and google the name of your medication plus the name of the herb/etc. you want to try. See what comes up if anything - sometimes you can even add "adverse" or "interaction" to your medication and herb/etc. in the search and find some interesting things. Write down what you find.
6) Call the naturopath back that you called in step 1 and ask if he/she is aware of any interactions between the medications you take and the herb/etc. you are thinking of taking. Write down this response as well.
7) Compare everything you were told. If everyone agrees there are no issues, then it is probably ok to try one dose of ONE herb/etc. and see what happens. Don't try this with more than one herb at a time. If you don't feel worse/have a negative or allergic reaction, then it is probably ok to take for a while and see if it helps any. Don't keep taking it if you feel worse from it.
As for financial ideas, call your state's Insurance Commissioner's office and ask about options for people like yourself without the ability to afford insurance. There may be a state-sponsored insurance plan you can qualify for that will cover Naturopathic treatment (or even regular MD treatment, thus giving you some additional money for other things - like an occasional appointment with a Naturopath).
Also, you might want to ask a Naturopath if there are any discount programs he is aware of for low-income people who want to have an appointment with a Naturopath. Sometimes, there are special discount programs, or even the Naturopath him/herself will offer to treat you at a reduced cost. But you don't know unless you ask.
Another thing is that I myself have found that allergic reactions and hypersensitivity reactions can create symptoms of GERD that respond to alternative ways of treating GERD - i.e., Benadryl for allergic reactions, & Vitamin B12 (very cheap supplement) + Tums for Sulfite Sensitivity reactions. So if you keep a detailed food diary for a while in which you note any changes in how you feel along with every ingredient in what you eat or drink, you may notice patterns that can lead you to experiment with dietary changes.
Also, I assume you are aware of the anti-reflux dietary guidelines (e.g., no citrus, spicy foods, caffeine, peppermint, etc., because these things can aggravate acid reflux)? If not, there are some resources at the top of the main GERD/Reflux forum here at HealingWell that may be helpful.
Good luck & take care,
Gluten & Sulfite Sensitivity, Many Food/Inhalant/Medication Allergies, Asthma, Gut issues (dysmotility, non-specific inflammation), UCTD (Lupus?), Osteoporosis, Anemia, Very Low Lymphocyte Counts (T-Cells & B-Cells), malabsorption/malnutrition, possible Lyme Disease (Igenex Lab IgM WesternBlot positive), etc.
Meds: Pulmicort, MaxAir, Injectable Vitamin B12, Herbs, Nutritional Supplements, Essential Oils, Homeopathy.