Hi Kdeen. OK, keep narrowing this down to the specifics, I like that. Redbull is not the essential brand/flavor. It is the caffeine and people think the added taurine of the energy drinks makes the caffeine more effective. Vasoconstrictor. I get hit every morning (when in cycle) around 9-10am. At 8:45am I drink a caffinated soda, coffee, tea etc. Straight caffeine works for me. I have also taken a preemptive caffeine pill (nodoz/vivarin).
If you wait until it is really hammering you it may be too late. The caffeine/taurine may get in faster?? So don't sweat the redbull stuff, just try some sort of caffeine routine as needed.
Couple other things: Disregard my advice if you are unable to use caffeine for any reason. Don't make other matters worse, like bad stomach, migraine triggers etc.
This is a good strategy for daytime hits. Bad strategy for nighttime sufferers because it tends to disrupt sleep so bad.

For the nighttime hits people have had good success with melatonin before bedtime. Some people have had great results. Check it out, more written on this site.
There is a way to split each imitrex injection into 3 seperate shots. Most people don't need the whole thing, so split it and make it go further. Keep acquiring more when not in cycle so you will have plenty when you are hit next. I haven't done any prescriptions, that is just what I read everyone say here.

For me, psilocybe mushrooms and caffeine have saved my life. 2 attacks in the last 2 years, not my normal 120. No side effects, no oxygen, just peace, love and pain free joy. I know that I have this condition for life and there is no cure. I also know that there will be some sneakers that make it through my defences from time to time. But choose your course and make it work. Pharmaceutical, naturals...we can make it work. Hang in there, I know this is rough. Keep making gains each day in your knowledge and treatment.
I would be tempted to order all the oxygen stuff right now if I were you and hook up with the local welders supply place. I think the oxygen, caffeine, melatonin may be your best immediate relief. Then either get your imitrex injections sorted out or go over to the busters website and get your RC seeds ordered.
Good luck!

--Shaggy
ps, lots of animated faces for you today, I think you need them