Notification emails - text to appear only if data is submitted for certain field

Hi,

I have a form with a number of optional fields and a number of fields that utilize conditional logic.
I have set up my admin notification emails so that all the values are preceded by text which explains what they are.

Example (within my notifications to administrator interface in message section)

Size: {Size:3}
Full Bleed: {Bleed:4}
Mail Fulfillment: {Mail:5}

When all fields have been completed by the user it looks good:
Size: 5 X 7
Full Bleed: Yes
Mail Fulfillment: No

But when some of these fields are left blank the email is full of text with no values assigned to it.
Size:
Full Bleed: Yes
Mail Fulfillment:

THis is fine in terms of getting the right information but there is usually so much text with blank space after it that the email is a bit confusing and messy looking.

Is there a way to make the descriptive text appear only when the value that corresponds to it has been submitted?
My desired version of previous example:
Full Bleed: Yes

I have tried adding this text to values in the form editor but that doesnt display in the notification emails. I have also tried inserting text within { } in the message section of the administer notification page but I havent been able to get that to work.

Is there a solution to this problem?

Thanks,
Emily