Ague dream meaning is explained below using 5 different sources. Each interpretation is shown with its source.

Interpretation 1 — Gustavus Hindman Miller

A sickly condition of the dreamer is sometimes implied by this dream.

To dream that you are shaking with an ague, signifies that you will suffer from some physical disorder, and that fluctuating opinions of your own affairs may bring you to the borders of prostration.

To see others thus affected, denotes that you will offend people by your supreme indifference to the influences of others.

Source: Ten Thousand Dream Interpretation Author: Gustavus Hindman Miller

Interpretation 2 — Stephen Girard

To dream you have an ague, denotes nothing very particular, more than that you are in danger of becoming a drunkard and a glutton. To dream your sweetheart has an ague, is a lucky omen; it shows you are beloved, and that you will be happy with the object of your wishes, but never very rich.
Source: The Mystic Dream Book Author: Stephen Girard

Interpretation 3 — Silvana Amar

Success, prosperity, and abundance due to diligence are forecast by a dream of this nature. This illness pertains to business and is a dream of contrary. You will be gratified by some new business developments. 
Source: The Bedside Dream Dictionary Author: Silvana Amar

Interpretation 4 — Stearn Robinson - Tom Corbett

This illness pertains to business and is a dream of contrary.

You will be gratified by some new business developments.

Source: The Complete Guide to Interpreting Your Dreams Author: Stearn Robinson - Tom Corbett

Interpretation 5 — Internet Archive - Anonymous

As with most dreams of bodily pain, this is a fortunate omen.
Source: Mystic Dream Book Author: Internet Archive - Anonymous