Konnichiwa! おげんきですか？ :P
あいしていますか？ *Aishite imasu ka?* can be asking one of the following...
_1. Do you love me?_
_2. Do you love her/him/it/them?_
Just as Derek-san has explained, if this is used as a phrase on its own, (that is, without *Watashi o*) - it would be referring to a third person. _"Do you love her/him/it/them?"_
If you want to specifically ask the person you are talking to "Do YOU love me?" then you should probably add *Watashi o* - so you'd say *Watashi o aishite imasu ka?* or in a more casual situation, *Watashi o aishiteru?*
:idea: Now, please be careful!
*Aishite __desu__ ka?* is an incorrect phrase... A te-form of a verb and *~desu* can __NEVER__ combine together. On the other hand, *~iru* or the polite form *~imasu* CAN be tacked on after a te-form verb to express an action in progress. Remember that the *'i'* in *'~__i__ru'* often gets dropped in colloquial speech when following a te-form - leaving the contractions *~teru*, or *~temasu*.