Should I be worried?

Recently, I have been experiencing much more discomfort, such as more nausea/vomiting, and muscle and bone pains. I've also felt tightness in my chest, which caused me to have shortness of breath. I panicked thinking it could be a heart attack and called the hospital. The doctor did not think this was heart related and instructed me to continue monitoring these symptoms.

These symptoms have also led me to get scans for a possible explanation. Perhaps the current treatment is not working, and I may need a new treatment. Hopefully this is not the case, as the current treatment is manageable. It would be nicer to think that these aches and pains were the result of the drugs beating cancer to death. But for now, I just have to wait for the scan results and hope for the best.

Update
Scans show that almost everything appears to be stable. Thank goodness! I definitely would like to know why I have these issues, but I'm happy knowing that everything is stable and I will stay the course for the current treatment.

My Dilemma

Tarceva didn't work for me. The only thing Tarceva did was give me reptile skin cover with pimples and an inflamed red nose. I started another treatment (alimta and avastin). I still have nausea, but it has been much kinder to me. As part of my treatment regimen, I take steroids the day before, the day of, and the day after treatment to keep my nausea mostly under control. Steroids also give me more energy to do things that would normally take a bit more effort. Unfortunately, all this energy keeps me up at night despite taking sleep aids.

So my dilemma is whether to take the steroids to keep the nausea at bay, or to forgo the steroids and deal with nausea everyday for over a week, but get good sleep. I flip back and forth for each treatment. I decided to take it this week, because I didn't want to deal with the nausea from the last treatment. Today, I added swimming to my gym routine in an effort to expend as much energy as possible. I'm tired! But, hopefully, I will get a good night's sleep.

In my memory...

I met a friend early last year who had the same diagnosis. We shared stories about our lives and our struggles with cancer. She was really upbeat and fun to be around, especially because she kept me sane and gave me comfort during tough times. When she stopped responding to my emails, I became worried. I reached out to her friend only to receive news of her passing. My heart sank. It was a desolate moment. I miss her so much. I miss her smile. I miss talking to her. I miss the support we gave each other. I think of her often.

A treatment going well initially can easily take a bad turn. We try different chemo treatments hoping that *this* treatment will be the one. I choke up thinking that my friend did not have to opportunity to find a treatment that would have kept the cancer at bay sooner.

In a way, it is a dismal reminder of how crucial lung cancer research is.

On a hopeful note, a "conspiracy to kill cancer":
http://www.time.com/time/magazine/article/0,9171,2139170,00.html