lookeyloo,
I know what it's like for a husband to be wracked with anxiety over health worries. My husband was an emotional basket case after his heart attack. I tried to comfort him, but the threat of another attack hovered over both of us constantly.
He finally agreed to seek counseling and we found a psychiatrist who specialized in the pharmaceutical treatment of acute anxiety. She was wonderful and really helped him.
Years later he still gets nervous when he feels a pang in his chest, but that passes quickly. I hope you can find help for your husband, sooner than June. You have my prayers.