We've been battling SCLC since September of last year. You can find the thread I started farther down the list of topics.
My mom stopped responding to the first line of chemo and they started her on a second line which, so far, seems to be keeping things in check.
She gets tired easily and has had to receive blood a few times. She's taking Avemar and Shark liver oil in conjunction with the chemo.
She is also cold a lot, and I have a feeling that's due to the lack of red and white blood cells (which are killed off by the chemo) - but we try and keep her warm and resting as much as possible. She moves around for 15 - 20 minutes at a time, which is really hard to witness because she used to go for 4 hour walks before her diagnosis not that long ago.
Keep your and her spirits up and focus on today as much as possible. It's been 6 months since my mom's diagnosis and one thing I've learned is that you really have to focus on each day. If she's feeling a bit better and you two can converse and have a good talk... it's a good day
We've had much, much more good days then bad and that really helps put things into perspective.
My heart goes out to you and others who are on this journey and I really hope you get to spend many more years together.