First I was taking  O2 at 15lpm one night and it woked like a charm for 15min.  Then I went to bed and 2hrs later my cluser came back.  I got on 02 for another 20min and it worked great.  I went to sleep and all was well.   Well the next day at about 4pm I had a anxiety attach and started to hyperventiate.  I had to go to  ER it go so bad.  They said I just need to calm down and control my breathing, do the paper bag thing.   

So I left the O2 alone for 24 hours and I didn't have a CH attack! (yay)  Then last night I had a CH attach and got on oxyegen for only 5 mins and then began to get dizzy and felt like I needed to faint.   The tank was on the end of it's life this time and may not have been givin' 15lm?  But then again, when it was full, i hyperventilated big time the next day. can anyone tell me what's wrong? I don't want to abort the headache just to fill like Im going into shock later.  Also, I kept breathing into a brown paper bag over over and over, and over again to no help.  can someone explain what had happened?

Joe is right, O2 should not cause the symptoms you are having. What type of mask are you using? A NON-rebreather with a bag is required, or a demand valve.

CH attacks can cause major anxiety, I get that too. It helps having the best treatments that can very from person to person. Are you taking any preventatives and other abortives?

We're here to help but we need to know what you're doing for your CH at present.

Don

Well, to answer some of your guys' questions, I was using a rebreather mask and using 15lpm.  However, I ended up in the emergency room twice so far.  The first time was just out of the blue and I hyperventilated big time, even went into body spasms.  They took my cat scan but said I had no major brain problems but did find a sinus infection.  It looks like I've had a sinus infection for two weeks now without taking care of it for two weeks.  I'm on antibotics now.  I'm on week three and actually, I think my clusters might be going away!!!! (I have never had them longer than 3 weeks ever so this is normal for me).

However, I went to the ER a second time, and it was immediately after using 15lpm with the mask and 3am.  I just started getting dizzy and light headed, and couldn't slow my breathing.  At the ER they said I am having anxiety/panic attacks.  They gave me xanax. 

Now for the last 4 days, I have been waking up in the middle of the night panicing for no reason.  Sometimes I think I still have a tumor they didn't find, sometimes I'm just afraid to go into spasms again and go to the ER again, and sometimes I'm just afraid of the dark/night because those were when my really really bad clusters would hit.

Anyone ever get anxiety after clusters??  This is the first time I have ever had this happen to me.