u/starburst12345678

After a full underwriting that took over 30 days I finally got approved for a Symetra 30 year term 600k policy at standard non nicotine- 37 y/o 115 lb female non smoker, but h/o thyroid cancer, psuedoaneurysm & benign brain tumor, and I take a benzo for sleep. I'm also having some chronic pain they are trying to figure out. I was terrified I was going to get denied. I accepted the policy, but would really like a higher coverage amount. How do I best go about this? Can I apply for the amount I want with them, hopefully they will use the same info they got from underwriting they just completed, then cancel the 600k policy? I don't want to layer a second policy as it will be too expensive for me that way.