Is this bed bug bites? i have 3, non itchy, bites in a line on my ankle.

Its possible: Its certainly possible, but could be other reasons.

Bed bug bites may: have no sx's/signs except for 2 small skin puncture points. A reaction may show from an hr to several days later. It can cause itchy, pink, swollen, lesions w clear center. If hypersensitive blisters may occur. Telltale sign is linear track of lesions from sequential feedings – doesn't always occur. Bites are in areas exposed while sleeping-arms, shoulders,neck & legs.