你的代码存在一些缩进错误，导致第二个代码块无法正常运行。在 Python 中，缩进对于定义代码块的范围非常重要。下面是已经修复了缩进错误的代码：

while True:
    do_youwanttoplay = input("Do you want to play? ").lower()

    if do_youwanttoplay == "yes":
        print("You are starting with", health, "health")
        print("Let's play!")
        break
    elif do_youwanttoplay == "no":
        print("Cya...")
        break
    else:
        print("Please enter either yes or no")

while True:
    first_choice = input("First choice... Left or Right (left/right)? ").lower()

    if first_choice == "left":
        ans = input("Nice, you follow the path and reach a lake... Do you swim across or go around (across/around)? ")
        break
    elif first_choice == "right":
        print("test")
    else:
        print("Please enter either left or right")

if ans == "across":
    print("You managed to get across, but were bit by a fish and lost 5 health")
    health -= 5
    print("Your health is now", health)
elif ans == "around":
    print("You went around and avoided getting bit by the fish, well done!")

现在，第一个循环和第二个循环都能够正常运行，并根据用户的输入执行相应的代码逻辑。在第二个循环中，根据用户的第一个选择，要么询问第二个问题，要么执行其他操作。请确保根据你的需求对代码进行进一步的调整和扩展。