Bobbin prolems...

My new shipment of labels came so I was excited to finish up products that I've been working on. I took a two week break from sewing since I didn't have any labels but worked on aspects of my products that didn't require the machine. Now that I've been back on my machine, I think I need a new bobbin because the bottom thread is loose and I've tried everything, other than getting a new bobbin, but nothing seems to work. My dearly beloved machine is about ten years old so might be on it's last thread of life. We'll see. Maybe it's time to invest in a new machine. A new decade... possibly a new machine and new adventures of Trizanh!