Warfarin Sodium and doctors say

I am so glad to read all of this information. I am a 40 year old female. I have suffered 2 PEs. I have varied from being on 10 mg of warfarin to 25 mg a day. This is the first time I got to go 1 month between INR checks. I'm on 11 mg/day with INR of 2.1. I am having SEVERE recurrent headaches, sleepless nights, feeling tired all the time, and problems with my memory. Drs tell me they don't know what this is from and there are no side effects to warfarin. I have a vena cava filter in and I'm on the medicine for the rest of my life. Glad to hear I'm not losing my mind (just having horrible side effects regardless of what the doctors say!)

Been on warfarin about 3 weeks due to an a-fib condition.. Dose is 2.5mg a day. Since starting I cannot sleep, feel very tired and fatigued and slight sour stomach. Doctors say this is due to the a-fib but I don't think so. All I hear from my doctors is no side effects. Hs anyone else experienced these symptoms, and/or is there a website where I can find some answers.

My second run in with a blood clot resulted in passing out on my way to pick up my 8 yr old daughter and being rushed to the ER because of a PE (near death), I'm thankful to be alive however (no reason for PE and being on coumadin for the rest of my life) I feel so tired now, I don't want to go to work, I can't concentrate, I suffer from dizzy spells, I'm always hungry (weight gain), nausea sometimes. before passing out I was working out, doing Taebo, the balance ball thing, walking. Now I feel like I'm and old woman. I'm 32 yrs old and taking #5 coumadin and I feel so bad the majority of the time and yes the doctors say "it's shouldn't be the coumadin" but I think it is my whole world has changed and I'm just trying to get back to being the fun, outgoing, active me. I miss myself so much, its like I'm depressed. I MISS MYSELF.

Symptoms which were not in existence prior to staring on warfarin although my doctors say they don't think it's warfarin I'm sure it is. I usually need to take around 9.5 to 10mg but my INR is never stable.
Side effects are extreme fatigue, fuzzy thinking, forgetfulness, hot rosy cheeks.

Has anyone ever experienced upper back pain with warfarin?
This is what bothers me. No headaches for me. Discolor in the feet and lower legs. I have been on this drug for over 2 years. Doctors say the back pain is not related, but I did not have this before I took this medication.
Am also on blood pressure medications. Coreg, avapro and take 2 different fluid pills.